a2a3	A00	Anderssen's opening
a2a4 e7e5 h2h4	A00	Crab opening
a2a4	A00	Ware (Meadow Hay) opening
b1a3	A00	Durkin's attack
b1c3 c7c5 d2d4 c5d4 d1d4 b8c6 d4h4	A00	Novosibirsk opening
b1c3 e7e5 a2a3	A00	Battambang opening
b1c3 e7e5	A00	Dunst (Sleipner,Heinrichsen) opening
b1c3	A00	Dunst (Sleipner, Heinrichsen) opening
b2b3 b7b5	A01	Nimzovich-Larsen attack: Polish variation
b2b3 b7b6	A01	Nimzovich-Larsen attack: symmetrical variation
b2b3 c7c5	A01	Nimzovich-Larsen attack: English variation
b2b3 d7d5	A01	Nimzovich-Larsen attack: classical variation
b2b3 e7e5	A01	Nimzovich-Larsen attack: modern variation
b2b3 f7f5	A01	Nimzovich-Larsen attack: Dutch variation
b2b3 g8f6	A01	Nimzovich-Larsen attack: Indian variation
b2b3	A01	Nimzovich-Larsen attack
b2b4 c7c6	A00	Polish: Outflank variation
b2b4 g8h6	A00	Polish: Tuebingen variation
b2b4	A00	Polish (Sokolsky) opening
c2c3	A00	Saragossa opening
c2c4 b7b5	A10	English: Jaenisch gambit
c2c4 c7c5 b1c3 b8c6 g1f3 g8f6	A35	English: symmetrical, four knights system
c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e2e3 e7e5	A36	English: symmetrical, Botvinnik system reversed
c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e2e4	A36	English: symmetrical, Botvinnik system
c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 g1f3 e7e5	A37	English: symmetrical, Botvinnik system reversed
c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 g1f3 g8f6 e1g1 e8g8 b2b3	A38	English: symmetrical, main line with b3
c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 g1f3 g8f6 e1g1 e8g8 d2d3	A38	English: symmetrical, main line with d3
c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 g1f3 g8f6 e1g1 e8g8 d2d4	A39	English: symmetrical, main line with d4
c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 g1f3 g8f6	A38	English: symmetrical variation
c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 g1f3	A37	English: symmetrical variation
c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7	A36	English: ultra-symmetrical variation
c2c4 c7c5 b1c3 b8c6 g2g3	A36	English: symmetrical variation
c2c4 c7c5 b1c3 b8c6	A35	English: symmetrical variation
c2c4 c7c5 b1c3 g8f6 g1f3 d7d5 c4d5 f6d5	A34	English: symmetrical, three knights system
c2c4 c7c5 b1c3 g8f6 g2g3 d7d5 c4d5 f6d5 f1g2 d5c7	A34	English: symmetrical, Rubinstein system
c2c4 c7c5 b1c3 g8f6 g2g3	A34	English: symmetrical variation
c2c4 c7c5 b1c3	A34	English: symmetrical variation
c2c4 c7c5 g1f3 g8f6 d2d4 c5d4 f3d4 e7e6 b1c3 b8c6 g2g3 d8b6	A33	English: symmetrical, Geller variation
c2c4 c7c5 g1f3 g8f6 d2d4 c5d4 f3d4 e7e6 b1c3 b8c6	A33	English: symmetrical variation
c2c4 c7c5 g1f3 g8f6 d2d4 c5d4 f3d4 e7e6	A32	English: symmetrical variation
c2c4 c7c5 g1f3 g8f6 d2d4	A31	English: symmetrical, Benoni formation
c2c4 c7c5 g1f3 g8f6 g2g3 b7b6 f1g2 c8b7 e1g1 e7e6 b1c3 f8e7 d2d4 c5d4 d1d4 d7d6 f1d1 a7a6 b2b3 b8d7	A30	English: symmetrical, hedgehog, flexible formation
c2c4 c7c5 g1f3 g8f6 g2g3 b7b6 f1g2 c8b7 e1g1 e7e6 b1c3 f8e7	A30	English: symmetrical, hedgehog system
c2c4 c7c5	A30	English: symmetrical variation
c2c4 c7c6 g1f3 d7d5 b2b3 c8g4	A12	English: Caro-Kann defensive system, Bogolyubov variation
c2c4 c7c6 g1f3 d7d5 b2b3 g8f6 c1b2 c8f5	A12	English: New York (London) defensive system
c2c4 c7c6 g1f3 d7d5 b2b3 g8f6 c1b2 c8g4	A12	English: Capablanca's variation
c2c4 c7c6 g1f3 d7d5 b2b3 g8f6 c1b2 g7g6	A12	English: Bled variation
c2c4 c7c6 g1f3 d7d5 b2b3 g8f6 c1b2	A12	English: Caro-Kann defensive system
c2c4 c7c6 g1f3 d7d5 b2b3 g8f6 g2g3 c8f5	A12	English: London defensive system
c2c4 c7c6 g1f3 d7d5 b2b3 g8f6 g2g3 c8g4	A12	English: Torre defensive system
c2c4 c7c6 g1f3 d7d5 b2b3	A12	English: Caro-Kann defensive system
c2c4 c7c6	A11	English: Caro-Kann defensive system
c2c4 e7e5 b1c3 b8c6 g1f3 g8f6 a2a3	A28	English: four knights, Marini variation
c2c4 e7e5 b1c3 b8c6 g1f3 g8f6 d2d3	A28	English: four knights, Capablanca variation
c2c4 e7e5 b1c3 b8c6 g1f3 g8f6 d2d4 e5d4 f3d4 f8b4 c1g5 h7h6 g5h4 b4c3 b2c3 c6e5	A28	English: Nenarokov variation
c2c4 e7e5 b1c3 b8c6 g1f3 g8f6 d2d4 e5e4	A28	English: Bradley Beach variation
c2c4 e7e5 b1c3 b8c6 g1f3 g8f6 e2e3 f8b4 d1c2 b4c3	A28	English: four knights, Romanishin variation
c2c4 e7e5 b1c3 b8c6 g1f3 g8f6 e2e3 f8b4 d1c2 e8g8 c3d5 f8e8 c2f5	A28	English: four knights, Stean variation
c2c4 e7e5 b1c3 b8c6 g1f3 g8f6 e2e3	A28	English: four knights, 4.e3
c2c4 e7e5 b1c3 b8c6 g1f3 g8f6 e2e4	A28	English: four knights, Nimzovich variation
c2c4 e7e5 b1c3 b8c6 g1f3 g8f6 g2g3	A29	English: four knights, kingside fianchetto
c2c4 e7e5 b1c3 b8c6 g1f3 g8f6	A28	English: four knights system
c2c4 e7e5 b1c3 b8c6 g1f3	A27	English: three knights system
c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 a1b1 g8h6	A25	English: closed, 5.Rb1 Taimanov variation
c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 a1b1	A25	English: closed, 5.Rb1
c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 e2e4	A26	English: Botvinnik system
c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6	A26	English: closed system
c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3	A25	English: closed system (without ...d6)
c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e2e3 d7d6 g1e2 c8e6	A25	English: closed, Hort variation
c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e2e3 d7d6 g1e2 g8h6	A25	English: closed, Taimanov variation
c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7	A25	English: closed system
c2c4 e7e5 b1c3 b8c6	A25	English: Sicilian reversed
c2c4 e7e5 b1c3 d7d6 g1f3 c8g4	A21	English, Smyslov defence
c2c4 e7e5 b1c3 d7d6 g1f3	A21	English opening
c2c4 e7e5 b1c3 d7d6 g2g3 c7c6	A21	English, Keres variation
c2c4 e7e5 b1c3 d7d6 g2g3 c8e6 f1g2 b8c6	A21	English, Troeger defence
c2c4 e7e5 b1c3 f8b4	A21	English, Kramnik-Shirov counterattack
c2c4 e7e5 b1c3 g8f6 g1f3 e5e4 f3g5 b7b5	A22	English: Bellon gambit
c2c4 e7e5 b1c3 g8f6 g2g3 c7c6	A23	English: Bremen system, Keres variation
c2c4 e7e5 b1c3 g8f6 g2g3 d7d5	A22	English: Bremen, reverse dragon
c2c4 e7e5 b1c3 g8f6 g2g3 f8b4	A22	English: Bremen, Smyslov system
c2c4 e7e5 b1c3 g8f6 g2g3 g7g6	A24	English: Bremen system with ...g6
c2c4 e7e5 b1c3 g8f6 g2g3	A22	English: Carls' Bremen system
c2c4 e7e5 b1c3 g8f6	A22	English opening
c2c4 e7e5 b1c3	A21	English opening
c2c4 e7e5 g1f3 e5e4	A20	English, Nimzovich, Flohr variation
c2c4 e7e5 g1f3	A20	English, Nimzovich variation
c2c4 e7e5	A20	English opening
c2c4 e7e6 g1f3 d7d5 b2b3 g8f6 c1b2 c7c5 e2e3	A13	English: Wimpey system
c2c4 e7e6 g1f3 d7d5 g2g3 c7c6	A13	English: Kurajica defence
c2c4 e7e6 g1f3 d7d5 g2g3 g8f6 f1g2 d5c4	A13	English: Neo-Catalan accepted
c2c4 e7e6 g1f3 d7d5 g2g3 g8f6 f1g2 f8e7 e1g1 c7c5 c4d5 f6d5 b1c3 b8c6	A14	English: Symmetrical, Keres defence
c2c4 e7e6 g1f3 d7d5 g2g3 g8f6 f1g2 f8e7 e1g1	A14	English: Neo-Catalan declined
c2c4 e7e6 g1f3 d7d5 g2g3 g8f6	A13	English: Neo-Catalan
c2c4 e7e6 g1f3 d7d5 g2g3	A13	English opening: Agincourt variation
c2c4 e7e6 g1f3 d7d5	A13	English opening: Agincourt variation
c2c4 e7e6 g1f3 g8f6 g2g3 a7a6 f1g2 b7b5	A13	English: Romanishin gambit
c2c4 e7e6	A13	English opening
c2c4 f7f5	A10	English: Anglo-Dutch defense
c2c4 g7g6 e2e4 e7e5	A10	English: Adorjan defence
c2c4 g7g6	A10	English opening
c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g1f3 g7g6 g2g3 f8g7 f1g2 e7e5	A16	English: Anglo-Gruenfeld defense, Korchnoi variation
c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g1f3	A16	English: Anglo-Gruenfeld defense
c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g2g3 g7g6 f1g2 d5b6	A16	English: Anglo-Gruenfeld, Czech defense
c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g2g3 g7g6 f1g2 d5c3	A16	English: Anglo-Gruenfeld, Smyslov defense
c2c4 g8f6 b1c3 d7d5	A16	English: Anglo-Gruenfeld defense
c2c4 g8f6 b1c3 e7e6 e2e4 b8c6	A18	English: Mikenas-Carls, Kevitz variation
c2c4 g8f6 b1c3 e7e6 e2e4 c7c5	A19	English: Mikenas-Carls, Sicilian variation
c2c4 g8f6 b1c3 e7e6 e2e4 d7d5 e4e5	A18	English: Mikenas-Carls, Flohr variation
c2c4 g8f6 b1c3 e7e6 e2e4	A18	English: Mikenas-Carls variation
c2c4 g8f6 b1c3 e7e6 g1f3 b7b6 e2e4 c8b7 f1d3	A17	English: Queens Indian, Romanishin variation
c2c4 g8f6 b1c3 e7e6 g1f3 b7b6	A17	English: Queens Indian formation
c2c4 g8f6 b1c3 e7e6 g1f3 f8b4	A17	English: Nimzo-English opening
c2c4 g8f6 b1c3 e7e6	A17	English opening
c2c4 g8f6 b1c3	A16	English opening
c2c4 g8f6 b2b4	A15	English orang-utan
c2c4 g8f6 g1f3	A15	English opening
c2c4 g8f6	A15	English, 1...Nf6 (Anglo-Indian defense)
c2c4	A10	English opening
d2d3 c7c5 b1c3 b8c6 g2g3	A00	Venezolana opening
d2d3 e7e5 b1d2	A00	Valencia opening
d2d3 e7e5	A00	Mieses opening
d2d3	A00	Mieses opening
d2d4 b7b5	A40	Polish defence
d2d4 b7b6	A40	Queen's pawn: English defence
d2d4 b8c6	A40	Queen's pawn: Lundin (Kevitz-Mikenas) defence
d2d4 c7c5 d4d5 d7d6 b1c3 g7g6	A43	Old Benoni: Schmid's system
d2d4 c7c5 d4d5 d7d6	A43	Old Benoni defence
d2d4 c7c5 d4d5 e7e5 e2e4 d7d6	A44	Semi-Benoni (`blockade variation')
d2d4 c7c5 d4d5 e7e5	A44	Old Benoni defence
d2d4 c7c5 d4d5 e7e6 e2e4	A43	Old Benoni: Franco-Benoni defence
d2d4 c7c5 d4d5 f7f5	A43	Old Benoni: Mujannah formation
d2d4 c7c5 d4d5 g8f6 b1c3 d8a5	A43	Woozle defence
d2d4 c7c5 d4d5 g8f6 g1f3 c5c4	A43	Hawk (Habichd) defence
d2d4 c7c5 d4d5 g8f6 g1f3	A43	Old Benoni defence
d2d4 c7c5 d4d5 g8f6	A43	Old Benoni defence
d2d4 c7c5	A43	Old Benoni defence
d2d4 d7d5 b1c3 c8g4	D00	Queen's pawn: Anti-Veresov
d2d4 d7d5 b1c3 g8f6 c1g5 c8f5 f2f3	D01	Richter-Veresov attack, Richter variation
d2d4 d7d5 b1c3 g8f6 c1g5 c8f5 g5f6	D01	Richter-Veresov attack, Veresov variation
d2d4 d7d5 b1c3 g8f6 c1g5	D01	Richter-Veresov attack
d2d4 d7d5 b1c3 g8f6 e2e4 d5e4 f2f3 e4f3 g1f3 e7e6	D00	Blackmar-Diemer: Euwe defence
d2d4 d7d5 b1c3 g8f6 e2e4 e7e5	D00	Blackmar-Diemer: Lemberg counter-gambit
d2d4 d7d5 b1c3 g8f6 e2e4	D00	Blackmar-Diemer gambit
d2d4 d7d5 b1c3	D00	Queen's pawn: Chigorin variation
d2d4 d7d5 c1f4 c7c5	D00	Queen's pawn, Mason variation, Steinitz counter-gambit
d2d4 d7d5 c1f4	D00	Queen's pawn, Mason variation
d2d4 d7d5 c1g5	D00	Levitsky attack (Queen's bishop attack)
d2d4 d7d5 c2c4 b8c6 b1c3 d5c4 g1f3	D07	QGD: Chigorin defence, Janowski variation
d2d4 d7d5 c2c4 b8c6	D07	QGD: Chigorin defence
d2d4 d7d5 c2c4 c7c5	D06	QGD: symmetrical (Austrian) defence
d2d4 d7d5 c2c4 c7c6 b1c3 d5c4 e2e4	D10	QGD Slav defence, Alekhine variation
d2d4 d7d5 c2c4 c7c6 b1c3 e7e5	D10	QGD Slav: Winawer counter-gambit
d2d4 d7d5 c2c4 c7c6 c4d5	D10	QGD Slav defence: exchange variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 b8a6 e2e4 c8g4	D16	QGD Slav: Smyslov variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 e2e3 b8a6	D18	QGD Slav: Dutch, Lasker variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 e2e3 e7e6 f1c4 f8b4 e1g1 e8g8 d1e2 f6e4 g2g4	D19	QGD Slav: Dutch, Saemisch variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 e2e3 e7e6 f1c4 f8b4 e1g1 e8g8 d1e2	D19	QGD Slav: Dutch variation, main line
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 e2e3 e7e6 f1c4 f8b4 e1g1	D19	QGD Slav: Dutch variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 e2e3	D18	QGD Slav: Dutch variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3e5 b8d7 e5c4 d8c7 g2g3 e7e5	D17	QGD Slav: Carlsbad variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3e5 e7e6	D17	QGD Slav: Wiesbaden variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5 f3e5	D17	QGD Slav: Krause attack
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8f5	D17	QGD Slav: Czech defence
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 c8g4	D16	QGD Slav: Steiner variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4 e7e6	D16	QGD Slav: Soultanbeieff variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 a2a4	D16	QGD Slav accepted: Alapin variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 e2e3	D15	QGD Slav: 5.e3 (Alekhine variation)
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 e2e4 b7b5 e4e5	D15	QGD Slav: Tolush-Geller gambit
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4 e2e4	D15	QGD Slav: Slav gambit
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d5c4	D15	QGD Slav accepted
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 d8b6	D15	QGD Slav: Suechting variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3 g7g6	D15	QGD Slav: Schlechter variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1c3	D15	QGD Slav: 4.Nc3
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 b1d2	D11	QGD Slav: Breyer variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 c4d5 c6d5 b1c3 b8c6 c1f4 c8f5 e2e3 e7e6 d1b3 f8b4	D14	QGD Slav: exchange, Trifunovic variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 c4d5 c6d5 b1c3 b8c6 c1f4 c8f5	D14	QGD Slav: exchange variation, 6.Bf4 Bf5
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 c4d5 c6d5	D13	QGD Slav: exchange variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 c8f5 c4d5 c6d5 b1c3 e7e6 f3e5 f6d7	D12	QGD Slav: Amsterdam variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 c8f5 c4d5 c6d5 b1c3	D12	QGD Slav: exchange variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 c8f5 c4d5 c6d5 d1b3 d8c8 c1d2 e7e6 b1a3	D12	QGD Slav: Landau variation
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3 c8f5	D12	QGD Slav: 4.e3 Bf5
d2d4 d7d5 c2c4 c7c6 g1f3 g8f6 e2e3	D11	QGD Slav: 4.e3
d2d4 d7d5 c2c4 c7c6 g1f3	D11	QGD Slav: 3.Nf3
d2d4 d7d5 c2c4 c7c6	D10	QGD Slav defence
d2d4 d7d5 c2c4 c8f5	D06	QGD: Grau (Sahovic) defence
d2d4 d7d5 c2c4 d5c4 e2e4 c7c5 d4d5 g8f6 b1c3 b7b5	D20	QGA: Linares variation
d2d4 d7d5 c2c4 d5c4 e2e4 f7f5	D20	QGA: Schwartz defence
d2d4 d7d5 c2c4 d5c4 e2e4	D20	QGA: 3.e4
d2d4 d7d5 c2c4 d5c4 g1f3 a7a6 e2e3 b7b5	D22	QGA: Haberditz variation
d2d4 d7d5 c2c4 d5c4 g1f3 a7a6 e2e3 c8g4 f1c4 e7e6 d4d5	D22	QGA: Alekhine defence, Alatortsev variation
d2d4 d7d5 c2c4 d5c4 g1f3 a7a6 e2e4	D21	QGA: Alekhine defense, Borisenko-Furman variation
d2d4 d7d5 c2c4 d5c4 g1f3 a7a6	D22	QGA: Alekhine defence
d2d4 d7d5 c2c4 d5c4 g1f3 b7b5	D21	QGA: Ericson variation
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 b1c3 a7a6 e2e4	D24	QGA, Bogolyubov variation
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 b1c3	D24	QGA, 4.Nc3
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 d1a4	D23	QGA: Mannheim variation
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 c8e6	D25	QGA, Flohr variation
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 c8g4	D25	QGA, Janowsky-Larsen variation
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 d1e2 a7a6 d4c5 f8c5 e1g1 b8c6 e3e4 b7b5 e4e5	D26	QGA: classical, Furman variation
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 a2a4	D27	QGA: classical, Rubinstein variation
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d1e2 b7b5 c4b3 b8c6 f1d1 c5c4 b3c2 c6b4 b1c3 b4c2 e2c2 c8b7 d4d5 d8c7	D28	QGA: classical, Flohr variation
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d1e2 b7b5 c4b3 c8b7 f1d1 b8d7 b1c3 f8d6	D29	QGA: classical, Smyslov variation
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d1e2 b7b5 c4b3 c8b7	D29	QGA: classical, 8...Bb7
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d1e2 b7b5	D28	QGA: classical, 7...b5
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 d1e2	D28	QGA: classical, 7.Qe2
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6 e3e4	D27	QGA: classical, Geller variation
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 a7a6	D27	QGA: classical, 6...a6
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1 c5d4	D26	QGA: classical, Steinitz variation
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5 e1g1	D26	QGA: classical variation, 6.O-O
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6 f1c4 c7c5	D26	QGA: classical variation
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 e7e6	D26	QGA: 4...e6
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3 g7g6	D25	QGA, Smyslov variation
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6 e2e3	D25	QGA, 4.e3
d2d4 d7d5 c2c4 d5c4 g1f3 g8f6	D23	Queen's gambit accepted
d2d4 d7d5 c2c4 d5c4 g1f3	D21	QGA: 3.Nf3
d2d4 d7d5 c2c4 d5c4	D20	Queen's gambit accepted
d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 e2e3 f8b4 c1d2 d4e3	D08	QGD: Albin counter-gambit, Lasker trap
d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 b1d2 c8g4 h2h3 g4f3 d2f3 f8b4 c1d2 d8e7	D08	QGD: Albin counter-gambit, Krenosz variation
d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 b1d2 d8e7	D08	QGD: Albin counter-gambit, Balogh variation
d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 b1d2 f7f6	D08	QGD: Albin counter-gambit, Janowski variation
d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 b1d2	D08	QGD: Albin counter-gambit, Alapin variation
d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3 b8c6 g2g3	D09	QGD: Albin counter-gambit, 5.g3
d2d4 d7d5 c2c4 e7e5 d4e5 d5d4 g1f3	D08	QGD: Albin counter-gambit
d2d4 d7d5 c2c4 e7e5	D08	QGD: Albin counter-gambit
d2d4 d7d5 c2c4 e7e6 b1c3 a7a6	D31	QGD: Janowski variation
d2d4 d7d5 c2c4 e7e6 b1c3 b7b6	D31	QGD: Alapin variation
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 c5d4	D32	QGD: Tarrasch, von Hennig-Schara gambit
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 d4c5 d5d4 c3a4 b7b5	D32	QGD: Tarrasch defence, Tarrasch gambit
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 e2e4	D32	QGD: Tarrasch defence, Marshall gambit
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 c5c4 e2e4	D33	QGD: Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 c5c4	D33	QGD: Tarrasch, Folkestone (Swedish) variation
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 c8g4	D33	QGD: Tarrasch, Wagner variation
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5 c8e6 a1c1 b7b6	D34	QGD: Tarrasch, Stoltz variation
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5 c8e6 a1c1 c5c4	D34	QGD: Tarrasch, Bogolyubov variation
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c1g5	D34	QGD: Tarrasch, Prague variation, 9.Bg5
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 d4c5 e7c5 c3a4	D34	QGD: Tarrasch, Reti variation
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8	D34	QGD: Tarrasch, Prague variation, Normal position
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6 f1g2 f8e7	D34	QGD: Tarrasch, Prague variation, 7...Be7
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3 g8f6	D33	QGD: Tarrasch, Prague variation
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3 b8c6 g2g3	D33	QGD: Tarrasch, Schlechter-Rubinstein system
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5 g1f3	D32	QGD: Tarrasch defence
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5 c4d5 e6d5	D32	QGD: Tarrasch defence, 4.cd ed
d2d4 d7d5 c2c4 e7e6 b1c3 c7c5	D32	QGD: Tarrasch defence
d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 e2e4	D31	QGD: semi-Slav, Marshall gambit
d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 a2a4 f8b4 e2e3 b7b5 c1d2 a7a5	D31	QGD: semi-Slav, Abrahams variation
d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 a2a4 f8b4 e2e3 b7b5 c1d2 d8b6	D31	QGD: semi-Slav, Junge variation
d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4 a2a4 f8b4 e2e3 b7b5 c1d2 d8e7	D31	QGD: semi-Slav, Koomen variation
d2d4 d7d5 c2c4 e7e6 b1c3 c7c6 g1f3 d5c4	D31	QGD: semi-Slav, Noteboom variation
d2d4 d7d5 c2c4 e7e6 b1c3 c7c6	D31	QGD: semi-Slav
d2d4 d7d5 c2c4 e7e6 b1c3 f8e7	D31	QGD: Charousek (Petrosian) variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1f4	D35	QGD: Harrwitz attack
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 a2a3	D51	QGD: Capablanca anti-Cambridge Springs variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 g1f3 d8a5 c4d5 f6d5	D52	QGD: Cambridge Springs defence, Yugoslav variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 g1f3 d8a5 c4d5	D52	QGD: Cambridge Springs defence, 7.cd
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 g1f3 d8a5 f3d2 d5c4	D52	QGD: Cambridge Springs defence, Rubinstein variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 g1f3 d8a5 f3d2 f8b4 d1c2 e8g8 g5h4	D52	QGD: Cambridge Springs defence, Argentine variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 g1f3 d8a5 f3d2 f8b4 d1c2	D52	QGD: Cambridge Springs defence, Bogoljubow variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 g1f3 d8a5 g5f6	D52	QGD: Cambridge Springs defence, Capablanca variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 g1f3 d8a5	D52	QGD: Cambridge Springs defence
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6 g1f3	D52	QGD
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 c7c6	D51	QGD: 5...c6
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3 f8b4	D51	QGD: Manhattan variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 e2e3	D51	QGD
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 g1f3 c7c6 a1c1 d8a5 g5d2	D51	QGD: Rochlin variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7 g1f3 c7c6 e2e4	D51	QGD: Alekhine variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 b8d7	D51	QGD: 4.Bg5 Nbd7
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c5 c4d5 d8b6	D50	QGD: Canal (Venice) variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c5 c4d5	D50	QGD: Semi-Tarrasch
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c5 g1f3 c5d4 d1d4	D50	QGD: Semi-Tarrasch, Primitive Pillsbury variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c5 g1f3 c5d4 f3d4 e6e5 d4b5 a7a6 d1a4	D50	QGD: Semi-Tarrasch, Krause variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 c7c5	D50	QGD: Been-Koomen variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 a1c1	D54	QGD: Anti-neo-orthodox variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b7b6 f1d3 c8b7 c4d5 e6d5 f3e5	D55	QGD: Pillsbury attack
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 a7a6 c4d5	D63	QGD: Orthodox defence, Swiss, Karlsbad variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 a7a6	D63	QGD: Orthodox defence, Swiss (Henneberger) variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 b7b6 c4d5 e6d5 f1b5	D63	QGD: Orthodox defence, Capablanca variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 b7b6 c4d5 e6d5 f1d3	D63	QGD: Orthodox defence, Pillsbury attack
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 d1c2 a7a6 a2a3	D64	QGD: Orthodox defence, Rubinstein attack, Gruenfeld variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 d1c2 a7a6 c4d5	D65	QGD: Orthodox defence, Rubinstein attack, main line
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 d1c2 a7a6	D64	QGD: Orthodox defence, Rubinstein attack, Karlsbad variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 d1c2 f6e4	D64	QGD: Orthodox defence, Rubinstein attack, Wolf variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 d1c2	D64	QGD: Orthodox defence, Rubinstein attack (with Rc1)
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 b7b5	D66	QGD: Orthodox defence, Bd3 line, fianchetto variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 c3e4	D67	QGD: Orthodox defence, Bd3 line, Alekhine variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 e1g1 d5c3 c1c3 e6e5 d1b1	D68	QGD: Orthodox defence, classical, 13.d1b1 (Maroczy)
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 e1g1 d5c3 c1c3 e6e5 d1c2	D68	QGD: Orthodox defence, classical, 13.d1c2 (Vidmar)
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 e1g1 d5c3 c1c3 e6e5 d4e5 d7e5 f3e5 e7e5	D69	QGD: Orthodox defence, classical, 13.de
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 e1g1 d5c3 c1c3 e6e5	D68	QGD: Orthodox defence, classical variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7 e1g1	D67	QGD: Orthodox defence, Bd3 line, 11.O-O
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 g5e7 d8e7	D67	QGD: Orthodox defence, Bd3 line
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5 h2h4	D67	QGD: Orthodox defence, Bd3 line, Janowski variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3 d5c4 d3c4 f6d5	D67	QGD: Orthodox defence, Bd3 line, Capablanca freeing manoevre
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6 f1d3	D66	QGD: Orthodox defence, Bd3 line
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1 c7c6	D63	QGD: Orthodox defence
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 a1c1	D63	QGD: Orthodox defence, 7.Rc1
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 d1b3	D60	QGD: Orthodox defence, Rauzer variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 d1c2 c7c5 c4d5	D62	QGD: Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 d1c2	D61	QGD: Orthodox defence, Rubinstein variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7 f1d3	D60	QGD: Orthodox defence, Botvinnik variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 b8d7	D60	QGD: Orthodox defence
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 h7h6 g5f6 e7f6 a1c1 c7c6 f1d3 b8d7 e1g1 d5c4 d3c4	D55	QGD: Petrosian variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 h7h6 g5f6	D55	QGD: Neo-orthodox variation, 7.Bxf6
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 h7h6 g5h4 b7b6 c4d5 f6d5 h4e7 d8e7 c3d5 e6d5 a1c1 c8e6	D59	QGD: Tartakower variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 h7h6 g5h4 b7b6 c4d5 f6d5	D59	QGD: Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd5
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 h7h6 g5h4 b7b6	D58	QGD: Tartakower (Makagonov-Bondarevsky) system
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 h7h6 g5h4 f6e4 h4e7 d8e7 c4d5 e4c3 b2c3 e6d5 d1b3 e7d6	D57	QGD: Lasker defence, Bernstein variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 h7h6 g5h4 f6e4 h4e7 d8e7 c4d5 e4c3 b2c3	D57	QGD: Lasker defence, main line
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 h7h6 g5h4 f6e4 h4e7 d8e7 d1c2 e4f6 f1d3 d5c4 d3c4 c7c5 e1g1 b8c6 f1d1 c8d7	D56	QGD: Lasker defence, Russian variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 h7h6 g5h4 f6e4 h4e7 d8e7 d1c2	D56	QGD: Lasker defence, Teichmann variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 h7h6 g5h4 f6e4	D56	QGD: Lasker defence
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 h7h6 g5h4	D55	QGD: Neo-orthodox variation, 7.Bh4
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3 h7h6	D55	QGD: Neo-orthodox variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8 g1f3	D55	QGD: 6.Nf3
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 e8g8	D53	QGD: 4.Bg5 Be7, 5.e3 O-O
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7 e2e3 f6e4	D53	QGD: Lasker variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5 f8e7	D53	QGD: 4.Bg5 Be7
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c1g5	D50	QGD: 4.Bg5
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c4d5 e6d5 c1g5 c7c6 d1c2	D36	QGD: exchange, positional line, 6.Qc2
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c4d5 e6d5 c1g5 c7c6	D35	QGD: exchange, positional line, 5...c6
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c4d5 e6d5 c1g5 f8e7 e2e3 e8g8 f1d3 b8d7 d1c2 f8e8 g1e2 d7f8 e1c1	D35	QGD: exchange, chameleon variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c4d5 e6d5 c1g5	D35	QGD: exchange, positional line
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c4d5 e6d5 g1f3 b8d7 c1f4	D35	QGD: exchange, Saemisch variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 c4d5	D35	QGD: exchange variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c5 c1g5	D40	QGD: Semi-Tarrasch defence, Pillsbury variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c5 c4d5 f6d5 e2e3 b8c6 f1d3	D42	QGD: Semi-Tarrasch, 7.Bd3
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c5 c4d5 f6d5 e2e3	D41	QGD: Semi-Tarrasch with e3
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c5 c4d5 f6d5 e2e4 d5c3 b2c3 c5d4 c3d4 f8b4 c1d2 b4d2 d1d2 e8g8 f1b5	D41	QGD: Semi-Tarrasch, Kmoch variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c5 c4d5 f6d5 e2e4 d5c3 b2c3 c5d4 c3d4 f8b4 c1d2 d8a5	D41	QGD: Semi-Tarrasch, San Sebastian variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c5 c4d5	D41	QGD: Semi-Tarrasch, 5.cd
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c5 e2e3 b8c6 f1d3 f8d6 e1g1 e8g8 d1e2 d8e7 d4c5 d6c5 e3e4	D40	QGD: Semi-Tarrasch, Levenfish variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c5 e2e3 b8c6 f1d3 f8d6 e1g1 e8g8	D40	QGD: Semi-Tarrasch, symmetrical variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c5	D40	QGD: Semi-Tarrasch defence
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 c1g5 d5c4 e2e4 b7b5 e4e5 h7h6 g5h4 g7g5 e5f6 g5h4 f3e5	D44	QGD semi-Slav: Ekstrom variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 c1g5 d5c4 e2e4 b7b5 e4e5 h7h6 g5h4 g7g5 f3g5 f6d5	D44	QGD semi-Slav: anti-Meran, Alatortsev system
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 c1g5 d5c4 e2e4 b7b5 e4e5 h7h6 g5h4 g7g5 f3g5 h6g5 h4g5 b8d7 d1f3	D44	QGD semi-Slav: anti-Meran, Szabo variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 c1g5 d5c4 e2e4 b7b5 e4e5 h7h6 g5h4 g7g5 f3g5 h6g5 h4g5 b8d7 g2g3	D44	QGD semi-Slav: anti-Meran, Lilienthal variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 c1g5 d5c4 e2e4 b7b5 e4e5 h7h6 g5h4 g7g5 f3g5	D44	QGD semi-Slav: anti-Meran gambit
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 c1g5 d5c4 e2e4	D44	QGD semi-Slav: Botvinnik system (anti-Meran)
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 c1g5 d5c4	D44	QGD semi-Slav: 5.Bg5 dc
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 c1g5 h7h6 g5f6 d8f6 d1b3	D43	QGD semi-Slav: Hastings variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 a7a6	D45	QGD semi-Slav: accelerated Meran (Alekhine variation)
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 d1c2	D45	QGD semi-Slav: Stoltz variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 b5b4	D48	QGD semi-Slav: Meran, Pirc variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 d4d5	D48	QGD semi-Slav: Meran, Reynolds' variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 d7e5 f3e5 a6b5 d1f3	D49	QGD semi-Slav: Meran, Stahlberg variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 d7e5 f3e5 a6b5 e1g1 d8d5 d1e2 c8a6 c1g5	D49	QGD semi-Slav: Meran, Rellstab attack
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 d7e5 f3e5 a6b5 e1g1	D49	QGD semi-Slav: Meran, Sozin variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 d7e5	D49	QGD semi-Slav: Meran, Sozin variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5 f6g4	D49	QGD semi-Slav: Meran, Rabinovich variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5 c5d4 c3b5	D49	QGD semi-Slav: Meran, Blumenfeld variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5 e4e5	D48	QGD semi-Slav: Meran, old main line
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6 e3e4 c6c5	D48	QGD semi-Slav: Meran
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 a7a6	D48	QGD semi-Slav: Meran, 8...a6
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 b5b4	D47	QGD semi-Slav: neo-Meran (Lundin variation)
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5 c4d3 c8b7	D47	QGD semi-Slav: Meran, Wade variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 d5c4 d3c4 b7b5	D47	QGD semi-Slav: Meran variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 d5c4 d3c4	D47	QGD semi-Slav: 7.Bc4
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 f8b4	D46	QGD semi-Slav: Romih variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 f8d6	D46	QGD semi-Slav: Chigorin defence
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3 f8e7	D46	QGD semi-Slav: Bogolyubov variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f1d3	D46	QGD semi-Slav: 6.Bd3
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7 f3e5	D45	QGD semi-Slav: Rubinstein (anti-Meran) system
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 b8d7	D45	QGD semi-Slav: 5...Nd7
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3 f6e4 f1d3 f7f5	D45	QGD semi-Slav: stonewall defence
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6 e2e3	D45	QGD semi-Slav: 5.e3
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 c7c6	D43	QGD semi-Slav
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 f8b4 c1g5 d5c4	D39	QGD: Ragozin, Vienna variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 f8b4	D38	QGD: Ragozin variation
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3 f8e7 c1f4	D37	QGD: classical variation (5.Bf4)
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6 g1f3	D37	QGD: 4.Nf3
d2d4 d7d5 c2c4 e7e6 b1c3 g8f6	D35	QGD: 3...Nf6
d2d4 d7d5 c2c4 e7e6 b1c3	D31	QGD: 3.Nc3
d2d4 d7d5 c2c4 e7e6 g1f3 g8f6 c1g5 b8d7 e2e3 c7c6 b1d2	D30	QGD: Capablanca variation
d2d4 d7d5 c2c4 e7e6 g1f3 g8f6 c1g5 f8b4	D30	QGD: Vienna variation
d2d4 d7d5 c2c4 e7e6 g1f3 g8f6 c1g5 h7h6 g5f6 d8f6 b1c3 c7c6 d1b3	D30	QGD: Hastings variation
d2d4 d7d5 c2c4 e7e6 g1f3 g8f6 c1g5 h7h6	D30	QGD: Capablanca-Duras variation
d2d4 d7d5 c2c4 e7e6 g1f3 g8f6 c1g5	D30	QGD
d2d4 d7d5 c2c4 e7e6 g1f3 g8f6 e2e3 c7c6 b1d2 b8d7 f1d3 c6c5	D30	QGD Slav: Semmering variation
d2d4 d7d5 c2c4 e7e6 g1f3 g8f6 e2e3 c7c6 b1d2 b8d7	D30	QGD Slav
d2d4 d7d5 c2c4 e7e6 g1f3 g8f6 e2e3 c7c6 b1d2 f6e4 f1d3 f7f5	D30	QGD: Stonewall variation
d2d4 d7d5 c2c4 e7e6 g1f3 g8f6 e2e3 c7c6 b1d2 g7g6	D30	QGD: Spielmann variation
d2d4 d7d5 c2c4 e7e6 g1f3 g8f6 e2e3 c7c6 b1d2	D30	QGD Slav
d2d4 d7d5 c2c4 e7e6	D30	Queen's gambit declined
d2d4 d7d5 c2c4 g8f6	D06	QGD: Marshall defence
d2d4 d7d5 c2c4	D06	Queen's Gambit
d2d4 d7d5 e2e3 g8f6 f1d3	D00	Queen's pawn: stonewall attack
d2d4 d7d5 e2e4	D00	Blackmar gambit
d2d4 d7d5 g1f3 b8c6	D02	Queen's pawn game, Chigorin variation
d2d4 d7d5 g1f3 c7c5	D02	Queen's pawn game, Krause variation
d2d4 d7d5 g1f3 g8f6 c1f4	D02	Queen's bishop game
d2d4 d7d5 g1f3 g8f6 c1g5	D03	Torre attack (Tartakower variation)
d2d4 d7d5 g1f3 g8f6 e2e3 e7e6 b1d2 c7c5 b2b3	D05	Queen's pawn game, Zukertort variation
d2d4 d7d5 g1f3 g8f6 e2e3 e7e6 f1d3 c7c5 b2b3	D05	Queen's pawn game, Rubinstein (Colle-Zukertort) variation
d2d4 d7d5 g1f3 g8f6 e2e3 e7e6 f1d3 c7c5 c2c3	D05	Colle system
d2d4 d7d5 g1f3 g8f6 e2e3 e7e6 f1d3	D05	Queen's pawn game
d2d4 d7d5 g1f3 g8f6 e2e3 e7e6	D05	Queen's pawn game
d2d4 d7d5 g1f3 g8f6 e2e3	D04	Queen's pawn game
d2d4 d7d5 g1f3 g8f6	D02	Queen's pawn game
d2d4 d7d5 g1f3	D02	Queen's pawn game
d2d4 d7d5	D00	Queen's pawn game
d2d4 d7d6 c2c4 g7g6 b1c3 f8g7 e2e4 b8c6	A42	Modern defence: Averbakh system, Kotov variation
d2d4 d7d6 c2c4 g7g6 b1c3 f8g7 e2e4 c7c5 g1f3 d8a5	A42	Pterodactyl defence
d2d4 d7d6 c2c4 g7g6 b1c3 f8g7 e2e4 f7f5	A42	Modern defence: Averbakh system, Randspringer variation
d2d4 d7d6 c2c4 g7g6 b1c3 f8g7 e2e4	A42	Modern defence: Averbakh system
d2d4 d7d6 c2c4 g7g6 b1c3 f8g7	A41	Modern defence
d2d4 d7d6 c2c4	A41	Old Indian defence
d2d4 d7d6 g1f3 c8g4	A41	Old Indian: Tartakower (Wade) variation
d2d4 d7d6	A41	Queen's Pawn
d2d4 e7e5 d4e5 b8c6 g1f3 d8e7 d1d5 f7f6 e5f6 g8f6	A40	Queen's pawn: Englund gambit
d2d4 e7e5	A40	Queen's pawn: Charlick (Englund) gambit
d2d4 e7e6 c2c4 b7b6	A40	Queen's pawn: Keres defence
d2d4 e7e6 c2c4 f8b4	A40	Queen's pawn: Franco-Indian (Keres) defence
d2d4 e7e6	A40	Queen's pawn
d2d4 f7f5 b1c3 g8f6 g2g4	A80	Dutch, Spielmann gambit
d2d4 f7f5 c1g5	A80	Dutch, 2.Bg5 variation
d2d4 f7f5 c2c4 e7e6 b1c3	A84	Dutch defence, Rubinstein variation
d2d4 f7f5 c2c4 e7e6 e2e4	A84	Dutch: Staunton gambit deferred
d2d4 f7f5 c2c4 e7e6	A84	Dutch defence
d2d4 f7f5 c2c4 g7g6 b1c3 g8h6	A84	Dutch defence: Bladel variation
d2d4 f7f5 c2c4 g8f6 b1c3	A85	Dutch with c4 & Nc3
d2d4 f7f5 c2c4 g8f6 g2g3 d7d6 f1g2 c7c6 b1c3 d8c7	A86	Dutch: Hort-Antoshin system
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8b4 c1d2 b4e7	A90	Dutch-Indian, Alekhine variation
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8b4	A90	Dutch defence: Dutch-Indian (Nimzo-Dutch) variation
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d5 b1c3 c7c6 d1c2 d8e8 c1g5	A95	Dutch: stonewall: Chekhover variation
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d5 b1c3 c7c6	A95	Dutch: stonewall with Nc3
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d5 b1c3	A92	Dutch: stonewall with Nc3
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d5 b2b3 c7c6 c1a3	A94	Dutch: stonewall with Ba3
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d5 b2b3	A93	Dutch: stonewall, Botwinnik variation
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d5	A92	Dutch: stonewall variation
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 d8e8 b2b3	A99	Dutch: Ilyin-Genevsky variation with b3
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 d8e8 d1c2	A98	Dutch: Ilyin-Genevsky variation with Qc2
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 d8e8 f1e1	A97	Dutch: Ilyin-Genevsky, Winter variation
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 d8e8	A97	Dutch: Ilyin-Genevsky variation
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6	A96	Dutch: classical variation
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 f6e4	A92	Dutch defence, Alekhine variation
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8	A92	Dutch defence
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7	A91	Dutch defence
d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2	A90	Dutch defence
d2d4 f7f5 c2c4 g8f6 g2g3 g7g6 f1g2 f8g7 g1f3 e8g8 e1g1 d7d6 b1c3 b8c6	A89	Dutch: Leningrad, main variation with Nc6
d2d4 f7f5 c2c4 g8f6 g2g3 g7g6 f1g2 f8g7 g1f3 e8g8 e1g1 d7d6 b1c3 c7c6	A88	Dutch: Leningrad, main variation with c6
d2d4 f7f5 c2c4 g8f6 g2g3 g7g6 f1g2 f8g7 g1f3	A87	Dutch: Leningrad, main variation
d2d4 f7f5 c2c4 g8f6 g2g3 g7g6	A86	Dutch: Leningrad variation
d2d4 f7f5 c2c4 g8f6 g2g3	A86	Dutch with c4 & g3
d2d4 f7f5 c2c4 g8f6	A84	Dutch defence
d2d4 f7f5 c2c4	A84	Dutch defence
d2d4 f7f5 d1d3 e7e6 g2g4	A80	Dutch, Von Pretzel gambit
d2d4 f7f5 d1d3	A80	Dutch, Manhattan (Alapin, Ulvestad) variation
d2d4 f7f5 e2e4 d7d6	A82	Dutch: Balogh defence
d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 b7b6	A83	Dutch: Staunton gambit, Nimzovich variation
d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 c7c6	A83	Dutch: Staunton gambit, Chigorin variation
d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 g7g6 f2f3	A83	Dutch: Staunton gambit, Lasker variation
d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 g7g6 h2h4	A83	Dutch: Staunton gambit, Alekhine variation
d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5	A83	Dutch: Staunton gambit, Staunton's line
d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 g2g4	A82	Dutch: Staunton gambit, Tartakower variation
d2d4 f7f5 e2e4 f5e4	A82	Dutch: Staunton gambit
d2d4 f7f5 e2e4	A82	Dutch: Staunton gambit
d2d4 f7f5 g2g3 g7g6 f1g2 f8g7 g1f3 c7c6 e1g1 g8h6	A81	Dutch: Leningrad, Basman system
d2d4 f7f5 g2g3 g7g6 f1g2 f8g7 g1h3	A81	Dutch: Leningrad, Karlsbad variation
d2d4 f7f5 g2g3 g8f6 f1g2 e7e6 g1h3	A81	Dutch defence, Blackburne variation
d2d4 f7f5 g2g3 g8f6 f1g2 g7g6	A81	Dutch defence
d2d4 f7f5 g2g3	A81	Dutch defence
d2d4 f7f5 g2g4	A80	Dutch, Krejcik gambit
d2d4 f7f5 h2h3	A80	Dutch, Korchnoi attack
d2d4 f7f5	A80	Dutch
d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 g7c3 b2c3 f7f5	A40	Beefeater defence
d2d4 g7g6	A40	Modern defence
d2d4 g8f6 c1g5	A45	Trompovsky attack (Ruth, Opovcensky opening)
d2d4 g8f6 c2c4 b7b6	A50	Queen's Indian accelerated
d2d4 g8f6 c2c4 b8c6	A50	Kevitz-Trajkovich defence
d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3 a6b5 e2e4 b5b4 c3b5 d7d6 f1c4	A57	Benko gambit: Nescafe Frappe attack
d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3	A57	Benko gambit: Zaitsev system
d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 e2e4 a6f1 e1f1 g7g6 g1e2	A59	Benko gambit: Ne2 variation
d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 e2e4 a6f1 e1f1 g7g6 g2g3 f8g7 f1g2 e8g8 g1f3	A59	Benko gambit: main line
d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 e2e4 a6f1 e1f1 g7g6 g2g3	A59	Benko gambit
d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 e2e4	A59	Benko gambit: 7.e4
d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 g1f3 g7g6 f3d2	A58	Benko gambit: Nd2 variation
d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 g1f3 g7g6 g2g3	A58	Benko gambit: fianchetto variation
d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6	A58	Benko gambit accepted
d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6	A57	Benko gambit half accepted
d2d4 g8f6 c2c4 c7c5 d4d5 b7b5	A57	Benko gambit
d2d4 g8f6 c2c4 c7c5 d4d5 d7d6	A56	Benoni defence, Hromodka system
d2d4 g8f6 c2c4 c7c5 d4d5 e7e5 b1c3 d7d6 e2e4 g7g6	A56	Czech Benoni: King's Indian system
d2d4 g8f6 c2c4 c7c5 d4d5 e7e5	A56	Czech Benoni defence
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 e4e5	A66	Benoni: Mikenas variation
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 f1b5	A67	Benoni: Taimanov variation
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 g1f3 e8g8 f1e2 f8e8	A69	Benoni: four pawns attack, main line
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 g1f3 e8g8	A68	Benoni: four pawns attack
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4	A66	Benoni: pawn storm variation
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 c1g5	A71	Benoni: classical, 8.Bg5
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 a7a6 a2a4 c8g4	A75	Benoni: classical with ...a6 and 10...Bg4
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 a7a6 a2a4	A74	Benoni: classical, 9...a6, 10.a4
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2 b8a6 f2f3	A79	Benoni: classical, 11.f3
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2 b8a6	A78	Benoni: classical with ...Re8 and ...Na6
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2	A77	Benoni: classical, 9...Re8, 10.Nd2
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8	A76	Benoni: classical, 9...Re8
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1	A73	Benoni: classical, 9.O-O
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8	A72	Benoni: classical without 9.O-O
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2	A70	Benoni: classical without 9.O-O
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3	A70	Benoni: classical with e4 and Nf3
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4	A65	Benoni: 6.e4
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 g1f3 g7g6 c1g5	A61	Benoni: Uhlmann variation
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 g1f3 g7g6 f3d2	A61	Benoni: Nimzovich (knight's tour) variation
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 g1f3 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 b8d7 f3d2 a7a6 a2a4 f8e8	A64	Benoni: fianchetto, 11...Re8
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 g1f3 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 b8d7	A63	Benoni: fianchetto, 9...Nbd7
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 g1f3 g7g6 g2g3 f8g7 f1g2 e8g8	A62	Benoni: fianchetto variation
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 g1f3 g7g6 g2g3	A61	Benoni: fianchetto variation
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 g1f3 g7g6	A61	Benoni defence
d2d4 g8f6 c2c4 c7c5 d4d5 e7e6	A60	Benoni defence
d2d4 g8f6 c2c4 c7c5 d4d5 f6e4	A56	Vulture defence
d2d4 g8f6 c2c4 c7c5	A56	Benoni defence
d2d4 g8f6 c2c4 d7d6 b1c3 c8f5	A53	Old Indian: Janowski variation
d2d4 g8f6 c2c4 d7d6 b1c3 e7e5 e2e3 b8d7 f1d3	A54	Old Indian: Dus-Khotimirsky variation
d2d4 g8f6 c2c4 d7d6 b1c3 e7e5 g1f3 b8d7 e2e4	A55	Old Indian: main line
d2d4 g8f6 c2c4 d7d6 b1c3 e7e5 g1f3	A54	Old Indian: Ukrainian variation, 4.Nf3
d2d4 g8f6 c2c4 d7d6 b1c3 e7e5	A54	Old Indian: Ukrainian variation
d2d4 g8f6 c2c4 d7d6	A53	Old Indian defence
d2d4 g8f6 c2c4 e7e5 d4e5 f6e4 d1c2	A51	Budapest: Fajarowicz, Steiner variation
d2d4 g8f6 c2c4 e7e5 d4e5 f6e4	A51	Budapest: Fajarowicz variation
d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 c1f4	A52	Budapest: Rubinstein variation
d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4 d7d6	A52	Budapest: Alekhine variation, Balogh gambit
d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4 g4e5 f2f4 e5c6	A52	Budapest: Alekhine, Abonyi variation
d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4	A52	Budapest: Alekhine variation
d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 g1f3	A52	Budapest: Adler variation
d2d4 g8f6 c2c4 e7e5 d4e5 f6g4	A52	Budapest defence
d2d4 g8f6 c2c4 e7e5	A51	Budapest defence declined
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 c7c5 e2e3 b7b6	E26	Nimzo-Indian: Saemisch, O'Kelly variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 c7c5 e2e3	E26	Nimzo-Indian: Saemisch variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 c7c5 f2f3 d7d5 c4d5 f6d5 d4c5 f7f5	E25	Nimzo-Indian: Saemisch, Romanovsky variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 c7c5 f2f3 d7d5 c4d5 f6d5 d4c5	E25	Nimzo-Indian: Saemisch, Keres variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 c7c5 f2f3 d7d5 c4d5	E25	Nimzo-Indian: Saemisch variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 c7c5 f2f3 d7d5 e2e3 e8g8 c4d5 f6d5	E24	Nimzo-Indian: Saemisch, Botvinnik variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 e8g8 e2e3 c7c5 f1d3 b8c6 g1e2 b7b6 e3e4 f6e8	E29	Nimzo-Indian: Saemisch, Capablanca variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 e8g8 e2e3 c7c5 f1d3 b8c6	E29	Nimzo-Indian: Saemisch, main line
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 e8g8 e2e3	E28	Nimzo-Indian: Saemisch variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3 e8g8	E27	Nimzo-Indian: Saemisch variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 a2a3 b4c3 b2c3	E24	Nimzo-Indian: Saemisch variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 c1g5 h7h6 g5h4 c7c5 d4d5 b7b5	E30	Nimzo-Indian: Leningrad, ...b5 gambit
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 c1g5 h7h6 g5h4 c7c5 d4d5 d7d6	E31	Nimzo-Indian: Leningrad, main line
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 c1g5	E30	Nimzo-Indian: Leningrad variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1b3 c7c5 d4c5 b8c6 g1f3 f6e4 c1d2 e4c5 b3c2 f7f5 g2g3	E23	Nimzo-Indian: Spielmann, Staahlberg variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1b3 c7c5 d4c5 b8c6 g1f3 f6e4 c1d2 e4c5	E23	Nimzo-Indian: Spielmann, San Remo variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1b3 c7c5 d4c5 b8c6 g1f3 f6e4 c1d2 e4d2	E23	Nimzo-Indian: Spielmann, Karlsbad variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1b3 c7c5 d4c5 b8c6	E23	Nimzo-Indian: Spielmann, 4...c5, 5.dc Nc6
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1b3	E22	Nimzo-Indian: Spielmann variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 b8c6 g1f3 d7d6	E33	Nimzo-Indian: classical, Milner-Barry (Zurich) variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 b8c6	E33	Nimzo-Indian: classical, 4...Nc6
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 c7c5 d4c5 e8g8	E39	Nimzo-Indian: classical, Pirc variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 c7c5	E38	Nimzo-Indian: classical, 4...c5
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 a2a3 b4c3 c2c3 b8c6	E36	Nimzo-Indian: classical, Botvinnik variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 a2a3 b4c3 c2c3 f6e4 c3c2 b8c6 e2e3 e6e5	E37	Nimzo-Indian: classical, San Remo variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 a2a3 b4c3 c2c3 f6e4 c3c2	E37	Nimzo-Indian: classical, Noa variation, main line, 7.Qc2
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 a2a3 b4c3 c2c3 f6e4	E36	Nimzo-Indian: classical, Noa variation, main line
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 a2a3	E36	Nimzo-Indian: classical, Noa variation, 5.a3
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5 c4d5 e6d5	E35	Nimzo-Indian: classical, Noa variation, 5.cd ed
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 d7d5	E34	Nimzo-Indian: classical, Noa variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2 e8g8 a2a3 b4c3 c2c3 b7b5	E32	Nimzo-Indian: classical, Adorjan gambit
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1c2	E32	Nimzo-Indian: classical variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 d1d3	E20	Nimzo-Indian: Mikenas attack
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 b7b6 g1e2 c8a6	E45	Nimzo-Indian: 4.e3, Bronstein (Byrne) variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 b7b6 g1e2	E44	Nimzo-Indian: Fischer variation, 5.Ne2
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 b7b6	E43	Nimzo-Indian: Fischer variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 b8c6	E40	Nimzo-Indian: 4.e3, Taimanov variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 f1d3 b8c6 g1f3 b4c3 b2c3 d7d6	E41	Nimzo-Indian: e3, Huebner variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5 g1e2	E42	Nimzo-Indian: 4.e3 c5, 5.Ne2 (Rubinstein)
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 c7c5	E41	Nimzo-Indian: 4.e3 c5
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5 a2a3 b4c3 b2c3	E49	Nimzo-Indian: 4.e3, Botvinnik system
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3 d7d5	E48	Nimzo-Indian: 4.e3 O-O, 5.Bd3 d5
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 f1d3	E47	Nimzo-Indian: 4.e3 O-O, 5.Bd3
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1e2 d7d5 a2a3 b4d6	E46	Nimzo-Indian: Simagin variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1e2	E46	Nimzo-Indian: Reshevsky variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5 f1d3 b7b6	E52	Nimzo-Indian: 4.e3, main line with ...b6
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5 f1d3 b8c6 e1g1 d5c4	E51	Nimzo-Indian: 4.e3, Ragozin variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5 f1d3 c7c5 e1g1 b7b6	E53	Nimzo-Indian: 4.e3, Keres variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5 f1d3 c7c5 e1g1 b8c6 a2a3 b4c3 b2c3 d5c4 d3c4	E59	Nimzo-Indian: 4.e3, main line
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5 f1d3 c7c5 e1g1 b8c6 a2a3 b4c3 b2c3	E58	Nimzo-Indian: 4.e3, main line with 8...Bxc3
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5 f1d3 c7c5 e1g1 b8c6 a2a3 d5c4 d3c4 c5d4	E57	Nimzo-Indian: 4.e3, main line with 8...dc and 9...cd
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5 f1d3 c7c5 e1g1 b8c6	E56	Nimzo-Indian: 4.e3, main line with 7...Nc6
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5 f1d3 c7c5 e1g1 b8d7	E53	Nimzo-Indian: 4.e3, Gligoric system with 7...Nbd7
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5 f1d3 c7c5 e1g1 d5c4 d3c4 b8d7	E55	Nimzo-Indian: 4.e3, Gligoric system, Bronstein variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5 f1d3 c7c5 e1g1 d5c4 d3c4 d8e7	E54	Nimzo-Indian: 4.e3, Gligoric system, Smyslov variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5 f1d3 c7c5 e1g1 d5c4 d3c4	E54	Nimzo-Indian: 4.e3, Gligoric system with 7...dc
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5 f1d3 c7c5	E53	Nimzo-Indian: 4.e3, main line with ...c5
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3 d7d5	E51	Nimzo-Indian: 4.e3 e8g8, 5.Nf3 d7d5
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8 g1f3	E50	Nimzo-Indian: 4.e3 e8g8, 5.Nf3, without ...d5
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3 e8g8	E46	Nimzo-Indian: 4.e3 O-O
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 e2e3	E40	Nimzo-Indian: 4.e3
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 f2f3	E20	Nimzo-Indian: Kmoch variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 g1f3 c7c5 d4d5 f6e4	E21	Nimzo-Indian: three knights, Euwe variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 g1f3 c7c5 d4d5	E21	Nimzo-Indian: three knights, Korchnoi variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 g1f3	E21	Nimzo-Indian: three knights variation
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4 g2g3	E20	Nimzo-Indian: Romanishin-Kasparov (Steiner) system
d2d4 g8f6 c2c4 e7e6 b1c3 f8b4	E20	Nimzo-Indian defence
d2d4 g8f6 c2c4 e7e6 c1g5	E00	Neo-Indian (Seirawan) attack
d2d4 g8f6 c2c4 e7e6 g1f3 a7a6	E10	Dzindzikhashvili defence
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 a2a3	E12	Queen's Indian: Petrosian system
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3 c8b7 c1g5 h7h6 g5h4 f8b4	E13	Queen's Indian: 4.Nc3, main line
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3 c8b7 c1g5 h7h6 g5h4 g7g5 h4g3 f6h5	E12	Queen's Indian: 4.Nc3, Botvinnik variation
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 b1c3	E12	Queen's Indian: 4.Nc3
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 c1f4	E12	Queen's Indian: Miles variation
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 e2e3 c8b7 f1d3 c7c5 e1g1 f8e7 b2b3 e8g8 c1b2 c5d4 f3d4	E14	Queen's Indian: Averbakh variation
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 e2e3	E14	Queen's Indian: 4.e3
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8a6	E15	Queen's Indian: Nimzovich variation (exaggerated fianchetto)
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5 d4d5 e6d5 f3g5	E15	Queen's Indian: Buerger variation
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5 d4d5 e6d5 f3h4	E15	Queen's Indian: Rubinstein variation
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8b4 c1d2 a7a5	E16	Queen's Indian: Yates variation
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8b4 c1d2 b4e7	E16	Queen's Indian: Riumin variation
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8b4	E16	Queen's Indian: Capablanca variation
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 b1c3 f6e4 c1d2	E17	Queen's Indian: Opovcensky variation
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 b1c3	E17	Queen's Indian: anti-Queen's Indian system
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 b1c3 f6e4 d1c2 e4c3 c2c3	E19	Queen's Indian: old main line, 9.Qxc3
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 b1c3	E18	Queen's Indian: old main line, 7.Nc3
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1 e8g8 b2b3	E17	Queen's Indian: Euwe variation
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7 e1g1	E17	Queen's Indian: old main line, 6.O-O
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7 f1g2 f8e7	E17	Queen's Indian: 5.Bg2 Be7
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3 c8b7	E15	Queen's Indian: 4.g3 Bb7
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6 g2g3	E15	Queen's Indian: 4.g3
d2d4 g8f6 c2c4 e7e6 g1f3 b7b6	E12	Queen's Indian defence
d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 b7b5 c1g5 e6d5 c4d5 h7h6	E10	Blumenfeld counter-gambit, Spielmann variation
d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 b7b5 c1g5	E10	Blumenfeld counter-gambit, Dus-Chotimursky variation
d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 b7b5 d5e6 f7e6 c4b5 d7d5	E10	Blumenfeld counter-gambit accepted
d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 b7b5	E10	Blumenfeld counter-gambit
d2d4 g8f6 c2c4 e7e6 g1f3 f6e4	E10	Doery defence
d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 b1d2	E11	Bogo-Indian defence, Gruenfeld variation
d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 c1d2 b4d2 d1d2 b7b6 g2g3 c8b7 f1g2 e8g8 b1c3 f6e4 d2c2 e4c3 f3g5	E11	Bogo-Indian defence, Monticelli trap
d2d4 g8f6 c2c4 e7e6 g1f3 f8b4 c1d2 d8e7	E11	Bogo-Indian defence, Nimzovich variation
d2d4 g8f6 c2c4 e7e6 g1f3 f8b4	E11	Bogo-Indian defence
d2d4 g8f6 c2c4 e7e6 g1f3	E10	Queen's pawn game
d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 d1a4 b8d7 a4c4 a7a6 c4c2	E03	Catalan: open, Alekhine variation
d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 d1a4 b8d7 a4c4	E03	Catalan: open, 5.Qa4 Nbd7, 6.Qxc4
d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 d1a4	E02	Catalan: open, 5.Qa4
d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 g1f3 f8e7	E05	Catalan: open, classical line
d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 g1f3	E04	Catalan: open, 5.Nf3
d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3 e8g8 e1g1 b8d7 b1c3 c7c6 d1d3	E07	Catalan: closed, Botvinnik variation
d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3 e8g8 e1g1 b8d7 d1c2 c7c6 b1d2 b7b6 b2b3 a7a5 c1b2 c8a6	E09	Catalan: closed, Sokolsky variation
d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3 e8g8 e1g1 b8d7 d1c2 c7c6 b1d2	E09	Catalan: closed, main line
d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3 e8g8 e1g1 b8d7 d1c2 c7c6 b2b3 b7b6 f1d1 c8b7 b1c3 b6b5	E08	Catalan: closed, Spassky gambit
d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3 e8g8 e1g1 b8d7 d1c2 c7c6 b2b3	E08	Catalan: closed, Qc2 & b3
d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3 e8g8 e1g1 b8d7 d1c2 c7c6 f1d1 b7b6 a2a4	E08	Catalan: closed, Zagoryansky variation
d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3 e8g8 e1g1 b8d7 d1c2	E08	Catalan: closed, 7.Qc2
d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3 e8g8 e1g1 b8d7	E07	Catalan: closed, 6...Nbd7
d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 g1f3	E06	Catalan: closed, 5.Nf3
d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2	E01	Catalan: closed
d2d4 g8f6 c2c4 e7e6 g2g3	E00	Catalan opening
d2d4 g8f6 c2c4 e7e6	E00	Queen's pawn game
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4 f8g7 e2e3 e8g8 a1c1 c7c5 d4c5 c8e6	D83	Gruenfeld: Gruenfeld gambit, Botvinnik variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4 f8g7 e2e3 e8g8 a1c1	D83	Gruenfeld: Gruenfeld gambit, Capablanca variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4 f8g7 e2e3 e8g8 c4d5 f6d5 c3d5 d8d5 f4c7	D84	Gruenfeld: Gruenfeld gambit accepted
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4 f8g7 e2e3 e8g8	D83	Gruenfeld: Gruenfeld gambit
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1f4	D82	Gruenfeld: 4.Bf4
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1g5 f6e4 c3e4 d5e4 d1d2 c7c5	D80	Gruenfeld: Lundin variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c1g5	D80	Gruenfeld: Stockholm variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 e8g8 g1e2 b7b6	D86	Gruenfeld: exchange, Simagin's lesser variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 e8g8 g1e2 b8c6	D86	Gruenfeld: exchange, Simagin's improved variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 e8g8 g1e2 c7c5 e1g1 b8c6 c1e3 c5d4 c3d4 c8g4 f2f3 c6a5 c4d3 g4e6 d4d5	D89	Gruenfeld: exchange, Sokolsky variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 e8g8 g1e2 c7c5 e1g1 b8c6 c1e3 c5d4 c3d4 c8g4 f2f3 c6a5 c4d3 g4e6	D89	Gruenfeld: Spassky variation, main line, 13.Bd3
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 e8g8 g1e2 c7c5 e1g1 b8c6 c1e3 c5d4 c3d4	D88	Gruenfeld: Spassky variation, main line, 10...cd, 11.cd
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 e8g8 g1e2 c7c5 e1g1 b8c6 c1e3 c8g4 f2f3 c6a5 c4f7	D87	Gruenfeld: exchange, Seville variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 e8g8 g1e2 c7c5	D87	Gruenfeld: exchange, Spassky variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4 e8g8 g1e2 d8d7 e1g1 b7b6	D86	Gruenfeld: exchange, Larsen variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 f1c4	D86	Gruenfeld: exchange, classical variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 e2e4 d5c3 b2c3 f8g7 g1f3	D85	Gruenfeld: modern exchange variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5	D85	Gruenfeld: exchange variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 d1b3	D81	Gruenfeld: Russian variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 c7c6	D90	Gruenfeld: Schlechter variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 c1f4 e8g8 e2e3	D93	Gruenfeld with Bf4 e3
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 c1f4	D92	Gruenfeld: 5.Bf4
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 c1g5	D91	Gruenfeld: 5.Bg5
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1a4	D90	Gruenfeld: Flohr variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 a7a6	D97	Gruenfeld: Russian, Alekhine (Hungarian) variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 b7b6	D97	Gruenfeld: Russian, Levenfish variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 b8a6	D97	Gruenfeld: Russian, Prins variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 b8c6	D97	Gruenfeld: Russian, Byrne (Simagin) variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 c7c6	D97	Gruenfeld: Russian, Szabo (Boleslavsky) variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 c8g4 c1e3 f6d7 c4b3 c7c5	D99	Gruenfeld defence: Smyslov, Yugoslav variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 c8g4 c1e3 f6d7 c4b3	D99	Gruenfeld defence: Smyslov, main line
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 c8g4 c1e3 f6d7 f1e2 d7b6 c4d3 b8c6 e1c1	D98	Gruenfeld: Russian, Keres variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4 c8g4	D98	Gruenfeld: Russian, Smyslov variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3 d5c4 b3c4 e8g8 e2e4	D97	Gruenfeld: Russian variation with e4
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 d1b3	D96	Gruenfeld: Russian variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 b2b4	D94	Gruenfeld: Makogonov variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 c1d2	D94	Gruenfeld: Opovcensky variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 d1b3 d5c4 f1c4 b8d7 f3g5	D95	Gruenfeld: Pachman variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 d1b3 e7e6	D95	Gruenfeld: Botvinnik variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 d1b3	D95	Gruenfeld with e3 & Qb3
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 f1d3 c7c6 e1g1 c8f5	D94	Gruenfeld: Flohr defence
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 f1d3 c7c6 e1g1 c8g4	D94	Gruenfeld: Smyslov defence
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3 e8g8 f1d3	D94	Gruenfeld with e3 Bd3
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7 e2e3	D94	Gruenfeld: 5.e3
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3 f8g7	D90	Gruenfeld: Three knights variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g1f3	D90	Gruenfeld: Three knights variation
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5 g2g4	D80	Gruenfeld: Spike gambit
d2d4 g8f6 c2c4 g7g6 b1c3 d7d5	D80	Gruenfeld defence
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 c1g5	E70	King's Indian: accelerated Averbakh system
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1e3	E73	King's Indian: Semi-Averbakh system
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 c7c5 d4d5 e7e6	E75	King's Indian: Averbakh, main line
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5 c7c5	E74	King's Indian: Averbakh, 6...c5
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2 e8g8 c1g5	E73	King's Indian: Averbakh system
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f1e2	E73	King's Indian: 5.Be2
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 b7b6	E82	King's Indian: Saemisch, double fianchetto variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 b8c6 g1e2 a7a6 d1d2 a8b8	E84	King's Indian: Saemisch, Panno main line
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 b8c6 g1e2 a7a6	E83	King's Indian: Saemisch, Panno formation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 b8c6 g1e2 a8b8	E83	King's Indian: Saemisch, Ruban variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 b8c6	E83	King's Indian: Saemisch, 6...Nc6
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 c7c6 f1d3 a7a6	E81	King's Indian: Saemisch, Byrne variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 d4d5 c7c6 g1e2 c6d5	E89	King's Indian: Saemisch, orthodox main line
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 d4d5 c7c6	E88	King's Indian: Saemisch, orthodox, 7.d5 c6
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 d4d5 f6h5 d1d2 d8h4 g2g3 h5g3 d2f2 g3f1 f2h4 f1e3 e1e2 e3c4	E87	King's Indian: Saemisch, orthodox, Bronstein variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 d4d5	E87	King's Indian: Saemisch, orthodox, 7.d5
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5 g1e2 c7c6	E86	King's Indian: Saemisch, orthodox, 7.Nge2 c6
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8 c1e3 e7e5	E85	King's Indian: Saemisch, orthodox variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3 e8g8	E81	King's Indian: Saemisch, 5...O-O
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f3	E80	King's Indian: Saemisch variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 f1e2 c7c5 d4d5 e7e6 d5e6 f7e6 g2g4 b8c6 h2h4	E77	King's Indian: Six pawns attack
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 f1e2 c7c5 d4d5 e7e6 g1f3 e6d5 e4e5	E77	King's Indian: Four pawns attack, Florentine gambit
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 f1e2 c7c5 d4d5 e7e6 g1f3	E77	King's Indian: Four pawns attack
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 f1e2 c7c5 g1f3 c5d4 f3d4 b8c6 c1e3	E79	King's Indian: Four pawns attack, main line
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 f1e2 c7c5 g1f3	E78	King's Indian: Four pawns attack, with Be2 and Nf3
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 f1e2	E77	King's Indian: Four pawns attack, 6.Be2
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 g1f3 c7c5 d4d5	E76	King's Indian: Four pawns attack, dynamic line
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4	E76	King's Indian: Four pawns attack
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1e2	E70	King's Indian: Kramer system
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 c1e3	E90	King's Indian: Larsen variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 c1g5	E90	King's Indian: Zinnowitz variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 b8a6	E91	King's Indian: Kazakh variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 c1e3	E92	King's Indian: Gligoric-Taimanov system
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 d4d5 a7a5	E92	King's Indian: Petrosian system, Stein variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 d4d5 b8d7 c1g5 h7h6 g5h4 g6g5 h4g3 f6h5 h2h4	E93	King's Indian: Petrosian system, Keres variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 d4d5 b8d7	E93	King's Indian: Petrosian system, main line
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 d4d5	E92	King's Indian: Petrosian system
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 d4e5	E92	King's Indian: Andersson variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 b2b4	E97	King's Indian: orthodox, Aronin-Taimanov, bayonet attack
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 f3e1 f6d7 f2f3 f7f5 g2g4	E99	King's Indian: orthodox, Aronin-Taimanov, Benko attack
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 f3e1 f6d7 f2f3 f7f5	E99	King's Indian: orthodox, Aronin-Taimanov, main line
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6 d4d5 c6e7 f3e1	E98	King's Indian: orthodox, Aronin-Taimanov, 9.Ne1
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8c6	E97	King's Indian: orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8d7 f1e1 c7c6 e2f1 a7a5	E96	King's Indian: orthodox, 7...Nbd7, main line
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8d7 f1e1	E95	King's Indian: orthodox, 7...Nbd7, 8.Re1
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 b8d7	E94	King's Indian: orthodox, 7...Nbd7
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1 c7c6	E94	King's Indian: orthodox, Donner variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5 e1g1	E94	King's Indian: orthodox variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2 e7e5	E92	King's Indian: classical variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3 e8g8 f1e2	E91	King's Indian: 6.Be2
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g1f3	E90	King's Indian: 5.Nf3
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g2g3 e8g8 f1g2 e7e5 g1e2	E72	King's Indian: Pomar system
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 g2g3	E72	King's Indian with e4 & g3
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 h2h3	E71	King's Indian: Makagonov system (5.h3)
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4	E70	King's Indian: 4.e4
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 c1g5	E61	King's Indian: Smyslov system
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3 e8g8 f1g2 b8c6 e1g1 a7a6	E63	King's Indian: fianchetto, Panno variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3 e8g8 f1g2 b8c6 e1g1 c8f5	E62	King's Indian: fianchetto, lesser Simagin (Spassky) variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3 e8g8 f1g2 b8c6 e1g1 c8g4	E62	King's Indian: fianchetto, Simagin variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3 e8g8 f1g2 b8c6 e1g1 e7e5	E62	King's Indian: fianchetto, Uhlmann (Szabo) variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3 e8g8 f1g2 b8c6	E62	King's Indian: fianchetto with ...Nc6
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3 e8g8 f1g2 b8d7 e1g1 e7e5 e2e4 c7c6 h2h3	E69	King's Indian: fianchetto, classical main line
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3 e8g8 f1g2 b8d7 e1g1 e7e5 e2e4	E68	King's Indian: fianchetto, classical variation, 8.e4
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3 e8g8 f1g2 b8d7 e1g1 e7e5	E67	King's Indian: fianchetto, classical variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3 e8g8 f1g2 b8d7	E67	King's Indian: fianchetto with ...Nd7
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3 e8g8 f1g2 c7c5 e1g1 b8c6 d4d5	E66	King's Indian: fianchetto, Yugoslav Panno
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3 e8g8 f1g2 c7c5 e1g1	E65	King's Indian: fianchetto, Yugoslav, 7.O-O
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3 e8g8 f1g2 c7c5	E64	King's Indian: fianchetto, Yugoslav system
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3 e8g8 f1g2 c7c6 e1g1 c8f5	E62	King's Indian: fianchetto, Larsen system
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3 e8g8 f1g2 c7c6 e1g1 d8a5	E62	King's Indian: fianchetto, Kavalek (Bronstein) variation
d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 g1f3 d7d6 g2g3	E62	King's Indian: fianchetto variation
d2d4 g8f6 c2c4 g7g6 b1c3	E61	King's Indian defence, 3.Nc3
d2d4 g8f6 c2c4 g7g6 d1c2	E60	Queen's pawn: Mengarini attack
d2d4 g8f6 c2c4 g7g6 d4d5 b7b5	E60	King's Indian: Danube gambit
d2d4 g8f6 c2c4 g7g6 d4d5	E60	King's Indian: Anti-Gruenfeld
d2d4 g8f6 c2c4 g7g6 f2f3 d7d5	D70	Neo-Gruenfeld defence
d2d4 g8f6 c2c4 g7g6 g1f3	E60	King's Indian, 3.Nf3
d2d4 g8f6 c2c4 g7g6 g2g3 d7d5 f1g2 f8g7 c4d5 f6d5 e2e4 d5b6 g1e2	D72	Neo-Gruenfeld, 5.cd, main line
d2d4 g8f6 c2c4 g7g6 g2g3 d7d5 f1g2 f8g7 c4d5 f6d5	D71	Neo-Gruenfeld, 5.cd
d2d4 g8f6 c2c4 g7g6 g2g3 d7d5 f1g2 f8g7 g1f3 e8g8 c4d5 f6d5 e1g1 c7c5 b1c3	D75	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc3
d2d4 g8f6 c2c4 g7g6 g2g3 d7d5 f1g2 f8g7 g1f3 e8g8 c4d5 f6d5 e1g1 c7c5 d4c5	D75	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc
d2d4 g8f6 c2c4 g7g6 g2g3 d7d5 f1g2 f8g7 g1f3 e8g8 c4d5 f6d5 e1g1 d5b6	D76	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb6
d2d4 g8f6 c2c4 g7g6 g2g3 d7d5 f1g2 f8g7 g1f3 e8g8 c4d5 f6d5 e1g1	D74	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O
d2d4 g8f6 c2c4 g7g6 g2g3 d7d5 f1g2 f8g7 g1f3 e8g8 e1g1 c7c6 c4d5 c6d5	D79	Neo-Gruenfeld, 6.O-O, main line
d2d4 g8f6 c2c4 g7g6 g2g3 d7d5 f1g2 f8g7 g1f3 e8g8 e1g1 c7c6	D78	Neo-Gruenfeld, 6.O-O c6
d2d4 g8f6 c2c4 g7g6 g2g3 d7d5 f1g2 f8g7 g1f3 e8g8 e1g1	D77	Neo-Gruenfeld, 6.O-O
d2d4 g8f6 c2c4 g7g6 g2g3 d7d5 f1g2 f8g7 g1f3	D73	Neo-Gruenfeld, 5.Nf3
d2d4 g8f6 c2c4 g7g6 g2g3 d7d5	D70	Neo-Gruenfeld (Kemeri) defence
d2d4 g8f6 c2c4 g7g6 g2g3 f8g7 f1g2 d7d5	E60	King's Indian: 3.g3, counterthrust variation
d2d4 g8f6 c2c4 g7g6 g2g3	E60	King's Indian: 3.g3
d2d4 g8f6 c2c4 g7g6	E60	King's Indian defence
d2d4 g8f6 c2c4	A50	Queen's pawn game
d2d4 g8f6 f2f3 d7d5 e2e4	A45	Blackmar-Diemer gambit
d2d4 g8f6 f2f3 d7d5 g2g4	A45	Gedult attack
d2d4 g8f6 f2f3	A45	Paleface attack
d2d4 g8f6 f2f4	A45	Canard opening
d2d4 g8f6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5 c2c4 c5d4 d1d4	A47	Queen's Indian: Marienbad system, Berg variation
d2d4 g8f6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5	A47	Queen's Indian: Marienbad system
d2d4 g8f6 g1f3 b7b6	A47	Queen's Indian defence
d2d4 g8f6 g1f3 e7e6 c1g5 c7c5 e2e4	A46	Queen's pawn: Torre attack, Wagner gambit
d2d4 g8f6 g1f3 e7e6 c1g5	A46	Queen's pawn: Torre attack
d2d4 g8f6 g1f3 e7e6 e2e3	A46	Queen's pawn: Yusupov-Rubinstein system
d2d4 g8f6 g1f3 f6e4	A46	Doery defence
d2d4 g8f6 g1f3 g7g6 c1f4	A48	King's Indian: London system
d2d4 g8f6 g1f3 g7g6 c1g5	A48	King's Indian: Torre attack
d2d4 g8f6 g1f3 g7g6 g2g3	A49	King's Indian: fianchetto without c4
d2d4 g8f6 g1f3 g7g6	A48	King's Indian: East Indian defence
d2d4 g8f6 g1f3	A46	Queen's pawn game
d2d4 g8f6 g2g4	A45	Queen's pawn: Bronstein gambit
d2d4 g8f6	A45	Queen's pawn game
d2d4	A40	Queen's pawn
e2e3 e7e5 c2c4 d7d6 b1c3 b8c6 b2b3 g8f6	A00	Amsterdam attack
e2e3	A00	Van't Kruijs opening
e2e4 a7a5	B00	Corn stalk defence
e2e4 a7a6	B00	St. George (Baker) defence
e2e4 b7b6 d2d4 c8a6	B00	Guatemala defence
e2e4 b7b6	B00	Owen defence
e2e4 b8a6	B00	Lemming defence
e2e4 b8c6 b2b4 c6b4 c2c3 b4c6 d2d4	B00	KP: Nimzovich defence, Wheeler gambit
e2e4 b8c6 d2d4 d7d5 b1c3	B00	KP: Nimzovich defence, Bogolyubov variation
e2e4 b8c6 d2d4 d7d5 e4d5 d8d5 b1c3	B00	KP: Nimzovich defence, Marshall gambit
e2e4 b8c6 d2d4 f7f6	B00	KP: Neo-Mongoloid defence
e2e4 b8c6 d2d4	B00	KP: Nimzovich defence
e2e4 b8c6 g1f3 f7f5	B00	KP: Colorado counter
e2e4 b8c6 g1f3	B00	KP: Nimzovich defence
e2e4 b8c6	B00	KP: Nimzovich defence
e2e4 c7c5 b1c3 b8c6 f2f4 g7g6 g1f3 f8g7 f1c4 e7e6 f4f5	B23	Sicilian: Grand Prix attack, Schofman variation
e2e4 c7c5 b1c3 b8c6 f2f4	B23	Sicilian: Grand Prix attack
e2e4 c7c5 b1c3 b8c6 g1e2	B23	Sicilian: chameleon variation
e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 c1e3	B26	Sicilian: closed, 6.Be3
e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 f2f4 e7e5	B25	Sicilian: closed, 6.f4 e5 (Botvinnik)
e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 f2f4	B25	Sicilian: closed, 6.f4
e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 g1e2 e7e5	B25	Sicilian: closed, 6.Ne2 e5 (Botvinnik)
e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6	B25	Sicilian: closed
e2e4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 e7e6 c1e3 c6d4 c3e2	B24	Sicilian: closed, Smyslov variation
e2e4 c7c5 b1c3 b8c6 g2g3	B24	Sicilian: closed
e2e4 c7c5 b1c3 b8c6	B23	Sicilian: closed, 2...Nc6
e2e4 c7c5 b1c3 e7e6 g2g3 d7d5	B23	Sicilian: closed, Korchnoi variation
e2e4 c7c5 b1c3	B23	Sicilian: closed
e2e4 c7c5 b2b4 c5b4 a2a3 b4a3	B20	Sicilian: wing gambit, Carlsbad variation
e2e4 c7c5 b2b4 c5b4 a2a3 d7d5 e4d5 d8d5 c1b2	B20	Sicilian: wing gambit, Marienbad variation
e2e4 c7c5 b2b4 c5b4 a2a3	B20	Sicilian: wing gambit, Marshall variation
e2e4 c7c5 b2b4 c5b4 c2c4	B20	Sicilian: wing gambit, Santasiere variation
e2e4 c7c5 b2b4	B20	Sicilian: wing gambit
e2e4 c7c5 c2c3 g8f6 e4e5 f6d5 g1f3 b8c6 b1a3	B22	Sicilian: 2.c3, Heidenfeld variation
e2e4 c7c5 c2c3	B22	Sicilian: Alapin's variation (2.c3)
e2e4 c7c5 c2c4 d7d6 b1c3 b8c6 g2g3 h7h5	B20	Sicilian: Gloria variation
e2e4 c7c5 d2d4 c5d4 c2c3 d4c3 b1c3 b8c6 g1f3 d7d6 f1c4 e7e6 e1g1 a7a6 d1e2 b7b5 c4b3 a8a7	B21	Sicilian: Smith-Morra gambit, Chicago defence
e2e4 c7c5 d2d4 c5d4 c2c3	B21	Sicilian: Smith-Morra gambit
e2e4 c7c5 d2d4 c5d4 g1f3 e7e5 c2c3	B21	Sicilian: Andreaschek gambit
e2e4 c7c5 d2d4	B21	Sicilian: Smith-Morra gambit
e2e4 c7c5 f2f4	B21	Sicilian: Grand Prix attack
e2e4 c7c5 g1e2	B20	Sicilian: Keres variation (2.Ne2)
e2e4 c7c5 g1f3 a7a6	B28	Sicilian: O'Kelly variation
e2e4 c7c5 g1f3 b7b6	B27	Sicilian: Katalimov variation
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 d7d5	B32	Sicilian: Nimzovich variation
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 d8c7	B32	Sicilian: Flohr variation
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 e7e5 d4b5 d7d6	B32	Sicilian: Labourdonnais-Loewenthal (Kalashnikov) variation
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 e7e5	B32	Sicilian: Labourdonnais-Loewenthal variation
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 b1c3 f8g7 c1e3 g8f6 f1c4	B35	Sicilian: accelerated fianchetto, modern variation with Bc4
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 b1c3	B34	Sicilian: accelerated fianchetto, modern variation
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c2c4 f8g7 c1e3 g8f6 b1c3 f6g4	B39	Sicilian: accelerated fianchetto, Breyer variation
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c2c4 f8g7 c1e3	B38	Sicilian: accelerated fianchetto, Maroczy bind, 6.Be3
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c2c4 f8g7 d4c2 d7d6 f1e2 g8h6	B37	Sicilian: accelerated fianchetto, Simagin variation
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c2c4 f8g7	B37	Sicilian: accelerated fianchetto, Maroczy bind, 5...Bg7
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c2c4 g8f6 b1c3 c6d4 d1d4 d7d6	B36	Sicilian: accelerated fianchetto, Gurgenidze variation
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 c2c4	B36	Sicilian: accelerated fianchetto, Maroczy bind
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g7g6 d4c6	B34	Sicilian: accelerated fianchetto, exchange variation
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 e7e5 d4b3	B59	Sicilian: Boleslavsky variation, 7.Nb3
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 e7e5 d4c6	B58	Sicilian: Boleslavsky, Louma variation
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2 e7e5	B58	Sicilian: Boleslavsky variation
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 d7d6 f1e2	B58	Sicilian: classical
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b5 d7d6 c1g5 a7a6 b5a3 b7b5 g5f6 g7f6 c3d5 f6f5	B33	Sicilian: Sveshnikov variation
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b5 d7d6 c1g5 a7a6 b5a3 b7b5	B33	Sicilian: Pelikan, Chelyabinsk variation
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 d4b5 d7d6 c1g5 a7a6 b5a3 c8e6	B33	Sicilian: Pelikan, Bird variation
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5	B33	Sicilian: Pelikan (Lasker/Sveshnikov) variation
e2e4 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4 g8f6	B33	Sicilian defence
e2e4 c7c5 g1f3 b8c6 d2d4	B32	Sicilian defence
e2e4 c7c5 g1f3 b8c6 f1b5 g7g6 e1g1 f8g7 f1e1 e7e5 b2b4	B31	Sicilian: Nimzovich-Rossolimo attack, Gurgenidze variation
e2e4 c7c5 g1f3 b8c6 f1b5 g7g6	B31	Sicilian: Nimzovich-Rossolimo attack (with ...g6, without ...d6)
e2e4 c7c5 g1f3 b8c6 f1b5	B30	Sicilian: Nimzovich-Rossolimo attack (without ...d6)
e2e4 c7c5 g1f3 b8c6	B30	Sicilian defence
e2e4 c7c5 g1f3 d7d6 b2b4	B50	Sicilian: wing gambit deferred
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 d1d4 b8c6 f1b5 d8d7	B53	Sicilian: Chekhover, Zaitsev variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 d1d4	B53	Sicilian, Chekhover variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1e3	B90	Sicilian: Najdorf, Byrne (English) attack
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 b8d7 f1c4 d8a5 d1d2 e7e6 e1c1 b7b5 c4b3 c8b7 h1e1 d7c5 e4e5	B94	Sicilian: Najdorf, Ivkov variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 b7b5 e4e5 d6e5 f4e5 d8c7 d1e2	B96	Sicilian: Najdorf, Polugayevsky, Simagin variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 b7b5	B96	Sicilian: Najdorf, Polugayevsky variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 d8b6 d1d2 b6b2 a1b1 b2a3	B97	Sicilian: Najdorf, Poisoned pawn variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 d8b6	B97	Sicilian: Najdorf, 7...Qb6
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 f8e7 d1f3 d8c7 e1c1 b8d7	B99	Sicilian: Najdorf, 7...Be7 main line
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 f8e7 d1f3 d8c7	B98	Sicilian: Najdorf variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 f8e7 d1f3 h7h6 g5h4 d8c7	B98	Sicilian: Najdorf, Browne variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 f8e7 d1f3 h7h6 g5h4 g7g5	B98	Sicilian: Najdorf, Goteborg (Argentine) variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4 f8e7	B98	Sicilian: Najdorf, 7...Be7
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6 f2f4	B96	Sicilian: Najdorf, 7.f4
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5 e7e6	B95	Sicilian: Najdorf, 6...e6
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 c1g5	B94	Sicilian: Najdorf, 6.Bg5
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1c4	B90	Sicilian: Najdorf, Lipnitzky attack
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f1e2	B92	Sicilian: Najdorf, Opovcensky variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 f2f4	B93	Sicilian: Najdorf, 6.f4
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 g2g3	B91	Sicilian: Najdorf, Zagreb (fianchetto) variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6 h2h3	B90	Sicilian: Najdorf, Adams attack
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 a7a6	B90	Sicilian: Najdorf
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 c8d7 d1d2	B61	Sicilian: Richter-Rauzer, Larsen variation, 7.Qd2
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 c8d7	B60	Sicilian: Richter-Rauzer, Larsen variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 a7a6 e1c1 c8d7 f2f4 f8e7 d4f3 b7b5 g5f6	B69	Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf6
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 a7a6 e1c1 c8d7 f2f4 f8e7	B68	Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be7
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 a7a6 e1c1 c8d7	B67	Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 a7a6	B66	Sicilian: Richter-Rauzer, Rauzer attack, 7...a6
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 f8e7 e1c1 e8g8 f2f4 c6d4 d2d4	B65	Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 f8e7 e1c1 e8g8 f2f4 c6d4	B65	Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 f8e7 e1c1 e8g8 f2f4 e6e5	B64	Sicilian: Richter-Rauzer, Rauzer attack, Geller variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 f8e7 e1c1 e8g8 f2f4	B64	Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f4
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2 f8e7	B63	Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d2	B63	Sicilian: Richter-Rauzer, Rauzer attack
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d1d3	B62	Sicilian: Richter-Rauzer, Keres variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d4b3	B62	Sicilian: Richter-Rauzer, Podvebrady variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 d4c6	B62	Sicilian: Richter-Rauzer, Richter attack
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6 f1b5	B62	Sicilian: Richter-Rauzer, Margate (Alekhine) variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 e7e6	B62	Sicilian: Richter-Rauzer, 6...e6
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5 g7g6	B60	Sicilian: Richter-Rauzer, Bondarevsky variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 c1g5	B60	Sicilian: Richter-Rauzer
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 f1c4 d8b6	B57	Sicilian: Sozin, Benko variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 f1c4 g7g6 d4c6 b7c6 e4e5	B57	Sicilian: Magnus Smith trap
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6 f1c4	B57	Sicilian: Sozin, not Scheveningen
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 b8c6	B56	Sicilian
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e5 f1b5	B56	Sicilian: Venice attack
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 c1e3 a7a6 d1d2	B80	Sicilian: Scheveningen, English variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1b5	B80	Sicilian: Scheveningen, Vitolins variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1c4 a7a6 c4b3 b7b5	B87	Sicilian: Sozin with ...a6 and ...b5
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1c4 b8c6 c1e3 f8e7 d1e2	B89	Sicilian: Velimirovic attack
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1c4 b8c6 c1e3	B89	Sicilian: Sozin, 7.Be3
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1c4 b8c6 c4b3 f8e7 c1e3 e8g8 f2f4	B88	Sicilian: Sozin, Fischer variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1c4 b8c6	B88	Sicilian: Sozin, Leonhardt variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1c4	B86	Sicilian: Sozin attack
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1e2 a7a6 e1g1 b8d7	B84	Sicilian: Scheveningen, classical, Nd7 system
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1e2 a7a6 e1g1 d8c7 f2f4 b8c6 c1e3 f8e7 d1e1 e8g8	B85	Sicilian: Scheveningen, classical main line
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1e2 a7a6 e1g1 d8c7 f2f4 b8c6 c1e3	B85	Sicilian: Scheveningen, classical
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1e2 a7a6 e1g1 d8c7 f2f4 b8c6 g1h1 f8e7 a2a4	B85	Sicilian: Scheveningen, classical, Maroczy system
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1e2 a7a6 e1g1 d8c7 f2f4 b8c6	B85	Sicilian: Scheveningen, classical variation with ...Qc7 and ...Nc6
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1e2 a7a6 e1g1 d8c7	B84	Sicilian: Scheveningen (Paulsen), classical variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1e2 a7a6	B84	Sicilian: Scheveningen (Paulsen), classical variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1e2 b8c6 e1g1 f8e7 c1e3 e8g8 f2f4 c8d7 d4b3	B83	Sicilian: modern Scheveningen, main line with Nb3
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1e2 b8c6 e1g1 f8e7 c1e3 e8g8 f2f4	B83	Sicilian: modern Scheveningen, main line
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1e2 b8c6	B83	Sicilian: modern Scheveningen
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f1e2	B83	Sicilian: Scheveningen, 6.Be2
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f2f4 b8c6 c1e3 f8e7 d1f3	B82	Sicilian: Scheveningen, Tal variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 f2f4	B82	Sicilian: Scheveningen, 6.f4
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 g2g3	B80	Sicilian: Scheveningen, fianchetto variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6 g2g4	B81	Sicilian: Scheveningen, Keres attack
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 e7e6	B80	Sicilian: Scheveningen variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 b8c6 d1d2 e8g8 e1c1	B72	Sicilian: dragon, classical, Grigoriev variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 b8c6 d1d2	B72	Sicilian: dragon, classical, Amsterdam variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 b8c6 d4b3	B72	Sicilian: dragon, classical, Nottingham variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 b8c6 e1g1 e8g8 d1d2	B73	Sicilian: dragon, classical, Richter variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 b8c6 e1g1 e8g8 d4b3 a7a5	B74	Sicilian: dragon, classical, Alekhine variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 b8c6 e1g1 e8g8 d4b3 c8e6 f2f4 c6a5 f4f5 e6c4 b3a5 c4e2 d1e2 d8a5 g2g4	B74	Sicilian: dragon, classical, Stockholm attack
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 b8c6 e1g1 e8g8 d4b3 c8e6 f2f4 c6a5 f4f5 e6c4 e2d3 c4d3 c2d3 d6d5	B74	Sicilian: dragon, classical, Bernard defence
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 b8c6 e1g1 e8g8 d4b3 c8e6 f2f4 c6a5 f4f5 e6c4 e2d3	B74	Sicilian: dragon, classical, Spielmann variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 b8c6 e1g1 e8g8 d4b3 c8e6 f2f4 d8c8	B74	Sicilian: dragon, classical, Reti-Tartakower variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 b8c6 e1g1 e8g8 d4b3	B74	Sicilian: dragon, classical, 9.Nb3
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 b8c6 e1g1 e8g8 f2f4 d8b6 e4e5	B73	Sicilian: dragon, classical, Zollner gambit
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2 b8c6 e1g1	B73	Sicilian: dragon, classical, 8.O-O
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f1e2	B72	Sicilian: dragon, classical attack
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 e1c1	B76	Sicilian: dragon, Yugoslav attack, Rauser variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 a7a5	B77	Sicilian: dragon, Yugoslav attack, Byrne variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 c8d7 e1c1 d8a5 c4b3 f8c8 h2h4	B79	Sicilian: dragon, Yugoslav attack, 12.h4
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 c8d7 e1c1	B78	Sicilian: dragon, Yugoslav attack, 10.O-O-O
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4 c8d7	B77	Sicilian: dragon, Yugoslav attack, 9...Bd7
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8 d1d2 b8c6 f1c4	B77	Sicilian: dragon, Yugoslav attack, 9.Bc4
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3 e8g8	B76	Sicilian: dragon, Yugoslav attack, 7...O-O
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3 f8g7 f2f3	B75	Sicilian: dragon, Yugoslav attack
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 c1e3	B72	Sicilian: dragon, 6.Be3
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f2f4 b8d7	B71	Sicilian: dragon, Levenfish; Flohr variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6 f2f4	B71	Sicilian: dragon, Levenfish variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3 g7g6	B70	Sicilian: dragon variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 b1c3	B56	Sicilian
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 f2f3 e7e5 f1b5	B55	Sicilian: Prins variation, Venice attack
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4 g8f6 f2f3	B54	Sicilian: Prins (Moscow) variation
e2e4 c7c5 g1f3 d7d6 d2d4 c5d4 f3d4	B54	Sicilian
e2e4 c7c5 g1f3 d7d6 f1b5 c8d7 b5d7 d8d7 c2c4	B52	Sicilian: Canal-Sokolsky attack, Sokolsky variation
e2e4 c7c5 g1f3 d7d6 f1b5 c8d7 b5d7 d8d7 e1g1 b8c6 c2c3 g8f6 d2d4	B52	Sicilian: Canal-Sokolsky attack, Bronstein gambit
e2e4 c7c5 g1f3 d7d6 f1b5 c8d7	B52	Sicilian: Canal-Sokolsky attack, 3...Bd7
e2e4 c7c5 g1f3 d7d6 f1b5	B51	Sicilian: Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack
e2e4 c7c5 g1f3 d7d6	B50	Sicilian
e2e4 c7c5 g1f3 d8a5	B27	Sicilian: Stiletto (Althouse) variation
e2e4 c7c5 g1f3 d8c7	B27	Sicilian: Quinteros variation
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 b1c3	B43	Sicilian: Kan, 5.Nc3
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 c2c4 g8f6 b1c3 f8b4 f1d3 b8c6 d3c2	B41	Sicilian: Kan, Maroczy bind - Bronstein variation
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 c2c4	B41	Sicilian: Kan, Maroczy bind (Reti variation)
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 f1d3 f8c5	B42	Sicilian: Kan, Polugaievsky variation
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 f1d3 g7g6	B42	Sicilian: Kan, Swiss cheese variation
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 f1d3 g8f6 e1g1 d7d6 c2c4 g7g6	B42	Sicilian: Kan, Gipslis variation
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6 f1d3	B42	Sicilian: Kan, 5.Bd3
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 a7a6	B41	Sicilian: Kan variation
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 a7a6	B46	Sicilian: Taimanov variation
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 c1e3 a7a6 f1e2	B49	Sicilian: Taimanov variation
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7 c1e3	B48	Sicilian: Taimanov variation
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 d8c7	B47	Sicilian: Taimanov (Bastrikov) variation
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3 g8f6 d4b5 f8b4 b5d6	B45	Sicilian: Taimanov, American attack
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 b1c3	B45	Sicilian: Taimanov variation
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 d4b5 d7d6 c2c4 g8f6 b1c3 a7a6 b5a3 d6d5	B44	Sicilian, Szen variation, Dely-Kasparov gambit
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 d4b5 d7d6 c2c4 g8f6 b1c3 a7a6 b5a3 f8e7 f1e2 e8g8 e1g1 b7b6	B44	Sicilian, Szen, hedgehog variation
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6 d4b5	B44	Sicilian, Szen (`anti-Taimanov') variation
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 b8c6	B44	Sicilian defence
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 f8b4 e4e5	B40	Sicilian: Pin, Koch variation
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 f8b4 f1d3 e6e5	B40	Sicilian: Pin, Jaffe variation
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6 b1c3 f8b4	B40	Sicilian: Pin variation (Sicilian counter-attack)
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4 f3d4 g8f6	B40	Sicilian: Anderssen variation
e2e4 c7c5 g1f3 e7e6 d2d4 c5d4	B40	Sicilian defence
e2e4 c7c5 g1f3 e7e6 d2d4 d7d5	B40	Sicilian: Marshall variation
e2e4 c7c5 g1f3 e7e6	B40	Sicilian defence
e2e4 c7c5 g1f3 g7g6 c2c4 f8h6	B27	Sicilian: Acton extension
e2e4 c7c5 g1f3 g7g6	B27	Sicilian: Hungarian variation
e2e4 c7c5 g1f3 g8f6 e4e5 f6d5 b1c3 e7e6 c3d5 e6d5 d2d4 b8c6	B29	Sicilian: Nimzovich-Rubinstein; Rubinstein counter-gambit
e2e4 c7c5 g1f3 g8f6	B29	Sicilian: Nimzovich-Rubinstein variation
e2e4 c7c5 g1f3	B27	Sicilian defence
e2e4 c7c5 g2g3	B20	Sicilian: Steinitz variation
e2e4 c7c5	B20	Sicilian defence
e2e4 c7c6 b1c3 d7d5 d1f3	B10	Caro-Kann: Goldman (Spielmann) variation
e2e4 c7c6 b1c3 d7d5 g1f3 c8g4	B11	Caro-Kann: two knights, 3...Bg4
e2e4 c7c6 b1c3 d7d5 g1f3	B10	Caro-Kann: two knights variation
e2e4 c7c6 b1c3	B10	Caro-Kann defence
e2e4 c7c6 c2c4 d7d5	B10	Caro-Kann: anti-anti-Caro-Kann defence
e2e4 c7c6 c2c4	B10	Caro-Kann: anti-Caro-Kann defence
e2e4 c7c6 d2d3	B10	Caro-Kann: closed (Breyer) variation
e2e4 c7c6 d2d4 b8a6 b1c3 a6c7	B12	de Bruycker defence
e2e4 c7c6 d2d4 d7d5 b1c3 b7b5	B15	Caro-Kann: Gurgenidze counter-attack
e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 b8d7	B17	Caro-Kann: Steinitz variation
e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 c8f5 e4g3 f5g6 f2f4	B18	Caro-Kann: classical, Maroczy attack
e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 c8f5 e4g3 f5g6 g1h3	B18	Caro-Kann: classical, Flohr variation
e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 c8f5 e4g3 f5g6 h2h4 h7h6 g1f3 b8d7 h4h5	B19	Caro-Kann: classical, Spassky variation
e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 c8f5 e4g3 f5g6 h2h4 h7h6 g1f3 b8d7	B19	Caro-Kann: classical, 7...Nd7
e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 c8f5 e4g3 f5g6 h2h4	B18	Caro-Kann: classical, 6.h4
e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 c8f5	B18	Caro-Kann: classical variation
e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 g8f6 e4f6 e7f6 f1c4	B15	Caro-Kann: Forgacs variation
e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 g8f6 e4f6 e7f6	B15	Caro-Kann: Tartakower (Nimzovich) variation
e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 g8f6 e4f6 g7f6	B16	Caro-Kann: Bronstein-Larsen variation
e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4 g8f6 f1d3	B15	Caro-Kann: Alekhine gambit
e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 c3e4	B15	Caro-Kann defence
e2e4 c7c6 d2d4 d7d5 b1c3 d5e4 f2f3	B15	Caro-Kann: Rasa-Studier gambit
e2e4 c7c6 d2d4 d7d5 b1c3 g7g6	B15	Caro-Kann: Gurgenidze system
e2e4 c7c6 d2d4 d7d5 b1c3	B15	Caro-Kann defence
e2e4 c7c6 d2d4 d7d5 b1d2 d8b6	B12	Caro-Kann: Edinburgh variation
e2e4 c7c6 d2d4 d7d5 b1d2	B12	Caro-Kann: 3.Nd2
e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 b8c6 c1g5 d5c4 d4d5 c6a5	B13	Caro-Kann: Panov-Botvinnik, Herzog defence
e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 b8c6 c1g5 d8a5	B13	Caro-Kann: Panov-Botvinnik, Czerniak variation
e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 b8c6 c1g5 d8b6	B13	Caro-Kann: Panov-Botvinnik, Reifir (Spielmann) variation
e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 b8c6 c1g5 e7e6	B13	Caro-Kann: Panov-Botvinnik, normal variation
e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 e7e6	B14	Caro-Kann: Panov-Botvinnik attack, 5...e6
e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3 g7g6	B14	Caro-Kann: Panov-Botvinnik attack, 5...g6
e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 b1c3	B13	Caro-Kann: Panov-Botvinnik attack
e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4 g8f6 c4c5	B13	Caro-Kann: Panov-Botvinnik, Gunderam attack
e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 c2c4	B13	Caro-Kann: Panov-Botvinnik attack
e2e4 c7c6 d2d4 d7d5 e4d5 c6d5 f1d3 b8c6 c2c3 g8f6 c1f4	B13	Caro-Kann: exchange, Rubinstein variation
e2e4 c7c6 d2d4 d7d5 e4d5	B13	Caro-Kann: exchange variation
e2e4 c7c6 d2d4 d7d5 e4e5 c8f5 c2c3 e7e6 f1e2	B12	Caro-Kann: advance, Short variation
e2e4 c7c6 d2d4 d7d5 e4e5	B12	Caro-Kann: advance variation
e2e4 c7c6 d2d4 d7d5 f2f3	B12	Caro-Kann: Tartakower (fantasy) variation
e2e4 c7c6 d2d4 d7d5	B12	Caro-Kann defence
e2e4 c7c6 d2d4 g8f6	B12	Caro-Masi defence
e2e4 c7c6 d2d4	B12	Caro-Kann defence
e2e4 c7c6 f1c4	B10	Caro-Kann: Hillbilly attack
e2e4 c7c6	B10	Caro-Kann defence
e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 b2b4	B01	Scandinavian, Mieses-Kotrvc gambit
e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 d4e5 f8b4 c1d2 b8c6 g1f3	B01	Scandinavian: Anderssen counter-attack orthodox attack
e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 g1f3 c8g4	B01	Scandinavian: Anderssen counter-attack, Collijn variation
e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 g1f3	B01	Scandinavian: Anderssen counter-attack, Goteborg system
e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5	B01	Scandinavian: Anderssen counter-attack
e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8f5 f3e5 c7c6 g2g4	B01	Scandinavian defence, Gruenfeld variation
e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8f5	B01	Scandinavian defence
e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8g4 h2h3	B01	Scandinavian defence, Lasker variation
e2e4 d7d5 e4d5 d8d5 b1c3 d5d6	B01	Scandinavian: Pytel-Wade variation
e2e4 d7d5 e4d5 g8f6 c2c4 c7c6	B01	Scandinavian gambit
e2e4 d7d5 e4d5 g8f6 c2c4 e7e6	B01	Scandinavian: Icelandic gambit
e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 c2c4 d5b4	B01	Scandinavian: Kiel variation
e2e4 d7d5 e4d5 g8f6 d2d4 f6d5	B01	Scandinavian: Marshall variation
e2e4 d7d5 e4d5 g8f6 d2d4 g7g6	B01	Scandinavian: Richter variation
e2e4 d7d5 e4d5 g8f6 d2d4	B01	Scandinavian defence
e2e4 d7d5 e4d5 g8f6	B01	Scandinavian defence
e2e4 d7d5	B01	Scandinavian (centre counter) defence
e2e4 d7d6 d2d4 g8f6 b1c3 c7c6	B07	Pirc: Ufimtsev-Pytel variation
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1e3 c7c6 d1d2	B07	Pirc: 150 attack
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1g5	B07	Pirc: Byrne variation
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1c4	B07	Pirc: Holmov system
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2 f8g7 g2g4	B07	Pirc: Chinese variation
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2 f8g7 h2h4	B07	Pirc: bayonet (Mariotti) attack
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2	B07	Pirc defence
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 f1c4	B09	Pirc: Austrian attack, Ljubojevic variation
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 c7c5	B09	Pirc: Austrian attack, dragon formation
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 c1e3	B09	Pirc: Austrian attack, 6.Be3
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 e4e5	B09	Pirc: Austrian attack, 6.e5
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 f1d3	B09	Pirc: Austrian attack, 6.Bd3
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8	B09	Pirc: Austrian attack
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4	B09	Pirc: Austrian attack
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2	B08	Pirc: classical system, 5.Be2
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 h2h3	B08	Pirc: classical, h3 system
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7	B08	Pirc: classical (two knights) system
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3	B08	Pirc: classical (two knights) system
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g2g3	B07	Pirc: Sveshnikov system
e2e4 d7d6 d2d4 g8f6 b1c3 g7g6	B07	Pirc defence
e2e4 d7d6 d2d4 g8f6 b1c3	B07	Pirc defence
e2e4 e7e5 a2a3	C20	KP: Mengarini's opening
e2e4 e7e5 b1c3 b8c6 d2d4	C25	Vienna: Fyfe gambit
e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 d2d4 d8h4 e1e2 b7b6	C25	Vienna: Steinitz gambit, Fraser-Minckwitz variation
e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 d2d4 d8h4 e1e2 d7d5	C25	Vienna: Steinitz gambit, Zukertort defence
e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 d2d4	C25	Vienna: Steinitz gambit
e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 d2d4 g5g4 f1c4 g4f3 e1g1 d7d5 e4d5 c8g4 d5c6	C25	Vienna: Pierce gambit, Rushmere attack
e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 d2d4	C25	Vienna: Pierce gambit
e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 c6e5 f3f4 d8f6	C25	Vienna: Hamppe-Muzio, Dubois variation
e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1	C25	Vienna: Hamppe-Muzio gambit
e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 d7d6	C25	Vienna: Hamppe-Allgaier gambit, Alapin variation
e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5	C25	Vienna: Hamppe-Allgaier gambit
e2e4 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3	C25	Vienna gambit
e2e4 e7e5 b1c3 b8c6 f2f4	C25	Vienna gambit
e2e4 e7e5 b1c3 b8c6 g2g3	C25	Vienna: Paulsen variation
e2e4 e7e5 b1c3 b8c6	C25	Vienna game, Max Lange defence
e2e4 e7e5 b1c3 f8b4 d1g4 g8f6	C25	Vienna: Zhuravlev countergambit
e2e4 e7e5 b1c3 g8f6 a2a3	C26	Vienna: Mengarini variation
e2e4 e7e5 b1c3 g8f6 f1c4 b8c6	C28	Vienna game
e2e4 e7e5 b1c3 g8f6 f1c4 f6e4 d1h5 e4d6 c4b3 b8c6 c3b5 g7g6 h5f3 f7f5 f3d5 d8e7 b5c7 e8d8 c7a8 b7b6	C27	Vienna: `Frankenstein-Dracula' variation
e2e4 e7e5 b1c3 g8f6 f1c4 f6e4 d1h5 e4d6 c4b3 b8c6 d2d4	C27	Vienna: Adams' gambit
e2e4 e7e5 b1c3 g8f6 f1c4 f6e4 d1h5 e4d6 c4b3 f8e7 g1f3 b8c6 f3e5	C27	Vienna: Alekhine variation
e2e4 e7e5 b1c3 g8f6 f1c4 f6e4 d1h5 e4d6 c4b3 f8e7	C27	Vienna game
e2e4 e7e5 b1c3 g8f6 f1c4 f6e4 g1f3 d7d5	C27	Boden-Kieseritsky gambit: Lichtenhein defence
e2e4 e7e5 b1c3 g8f6 f1c4 f6e4 g1f3	C27	Boden-Kieseritsky gambit
e2e4 e7e5 b1c3 g8f6 f1c4 f6e4	C27	Vienna game
e2e4 e7e5 b1c3 g8f6 f1c4	C26	Vienna game
e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 d2d3	C29	Vienna gambit, Steinitz variation
e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 d1f3 f7f5 d2d4	C29	Vienna gambit: Heyde variation
e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 d1f3 f7f5	C29	Vienna gambit: Bardeleben variation
e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 d1f3	C29	Vienna gambit: Paulsen attack
e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 d2d3 d8h4 g2g3 e4g3 g1f3 h4h5 c3d5	C29	Vienna gambit, Wurzburger trap
e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 d2d3	C29	Vienna gambit
e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 g1f3 c8g4 d1e2	C29	Vienna gambit: Kaufmann variation
e2e4 e7e5 b1c3 g8f6 f2f4 d7d5 f4e5 f6e4 g1f3 f8e7	C29	Vienna gambit: Breyer variation
e2e4 e7e5 b1c3 g8f6 f2f4 d7d5	C29	Vienna gambit
e2e4 e7e5 b1c3 g8f6 g2g3	C26	Vienna: Paulsen-Mieses variation
e2e4 e7e5 b1c3 g8f6	C26	Vienna: Falkbeer variation
e2e4 e7e5 b1c3	C25	Vienna game
e2e4 e7e5 c2c3	C20	KP: Lopez opening
e2e4 e7e5 d1f3	C20	KP: Napoleon's opening
e2e4 e7e5 d1h5	C20	KP: Patzer opening
e2e4 e7e5 d2d3	C20	KP: Indian opening
e2e4 e7e5 d2d4 e5d4 c2c3 d4c3 f1c4 c3b2 c1b2 d7d5	C21	Danish gambit: Schlechter defence
e2e4 e7e5 d2d4 e5d4 c2c3 d4c3 f1c4 c3b2 c1b2 d8e7	C21	Danish gambit: Collijn defence
e2e4 e7e5 d2d4 e5d4 c2c3 d7d5	C21	Danish gambit: Soerensen defence
e2e4 e7e5 d2d4 e5d4 c2c3	C21	Danish gambit
e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4c4	C22	Centre game: Hall variation
e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4e3 f7f5	C22	Centre game: l'Hermet variation
e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4e3 f8b4 c2c3 b4e7	C22	Centre game: Charousek variation
e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4e3 g8f6 b1c3 f8b4 c1d2 e8g8 e1c1 f8e8 f1c4 d7d6 g1h3	C22	Centre game: Kupreichik variation
e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4e3 g8f6	C22	Centre game: Berger variation
e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4e3	C22	Centre game: Paulsen attack
e2e4 e7e5 d2d4 e5d4 d1d4 b8c6	C22	Centre game
e2e4 e7e5 d2d4 e5d4 d1d4	C21	Centre game
e2e4 e7e5 d2d4 e5d4 f2f4	C21	Halasz gambit
e2e4 e7e5 d2d4 e5d4 g1f3 c7c5 f1c4 b7b5	C21	Centre game, Kieseritsky variation
e2e4 e7e5 d2d4 e5d4	C21	Centre game
e2e4 e7e5 f1c4 c7c6 d2d4 d7d5 e4d5 c6d5 c4b5 c8d7 b5d7 b8d7 d4e5 d7e5 g1e2	C23	Bishop's opening: Lisitsyn variation
e2e4 e7e5 f1c4 c7c6	C23	Bishop's opening: Philidor counter-attack
e2e4 e7e5 f1c4 f7f5 d2d3	C23	Bishop's opening: Calabrese counter-gambit, Jaenisch variation
e2e4 e7e5 f1c4 f7f5	C23	Bishop's opening: Calabrese counter-gambit
e2e4 e7e5 f1c4 f8c5 b2b4 c5b4 f2f4 e5f4 g1f3 b4e7 d2d4 e7h4 g2g3 f4g3 e1g1 g3h2 g1h1	C23	Bishop's opening: Four pawns' gambit
e2e4 e7e5 f1c4 f8c5 b2b4 c5b4 f2f4	C23	Bishop's opening: MacDonnell double gambit
e2e4 e7e5 f1c4 f8c5 b2b4	C23	Bishop's opening: Wing gambit
e2e4 e7e5 f1c4 f8c5 c2c3 d7d5	C23	Bishop's opening: Lewis counter-gambit
e2e4 e7e5 f1c4 f8c5 c2c3 d8g5	C23	Bishop's opening: del Rio variation
e2e4 e7e5 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 e4e5 d7d5 e5f6 d5c4 d1h5 e8g8	C23	Bishop's opening: Pratt variation
e2e4 e7e5 f1c4 f8c5 c2c3	C23	Bishop's opening: Philidor variation
e2e4 e7e5 f1c4 f8c5 d1e2 b8c6 c2c3 g8f6 f2f4	C23	Bishop's opening: Lopez gambit
e2e4 e7e5 f1c4 f8c5 d2d4	C23	Bishop's opening: Lewis gambit
e2e4 e7e5 f1c4 f8c5	C23	Bishop's opening: Classical variation
e2e4 e7e5 f1c4 g8f6 d2d4 e5d4 g1f3 d7d5 e4d5 f8b4 c2c3 d8e7	C24	Bishop's opening: Urusov gambit, Panov variation
e2e4 e7e5 f1c4 g8f6 d2d4 e5d4 g1f3	C24	Bishop's opening: Urusov gambit
e2e4 e7e5 f1c4 g8f6 d2d4	C24	Bishop's opening: Ponziani gambit
e2e4 e7e5 f1c4 g8f6 f2f4	C24	Bishop's opening: Greco gambit
e2e4 e7e5 f1c4 g8f6	C24	Bishop's opening: Berlin defence
e2e4 e7e5 f1c4	C23	Bishop's opening
e2e4 e7e5 f2f3	C20	KP: King's head opening
e2e4 e7e5 f2f4 c7c5	C30	KGD: Mafia defence
e2e4 e7e5 f2f4 d7d5 b1c3	C31	KGD: Falkbeer, Milner-Barry variation
e2e4 e7e5 f2f4 d7d5 e4d5 c7c6	C31	KGD: Nimzovich counter-gambit
e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 b1c3 g8f6 d1e2	C31	KGD: Falkbeer, Rubinstein variation
e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 b1c3 f8b4 c1d2 e4e3	C31	KGD: Falkbeer, Morphy gambit
e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 b1d2	C32	KGD: Falkbeer, Keres variation
e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d1e2	C32	KGD: Falkbeer, Reti variation
e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 f6e4 d1e2 d8d5 b1d2 f7f5 g2g4	C32	KGD: Falkbeer, Charousek variation
e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 f6e4 d1e2	C32	KGD: Falkbeer, Charousek gambit
e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 f6e4 g1f3 f8c5 d1e2 c5f2 e1d1 d8d5 f3d2	C32	KGD: Falkbeer, Alapin variation
e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 f6e4 g1f3 f8c5 d1e2 c8f5 g2g4 e8g8	C32	KGD: Falkbeer, Tarrasch variation
e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4 f6e4 g1f3 f8c5 d1e2 c8f5	C32	KGD: Falkbeer, main line, 7...Bf5
e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3 g8f6 d3e4	C32	KGD: Falkbeer, 5.de
e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 d2d3	C31	KGD: Falkbeer, 4.d3
e2e4 e7e5 f2f4 d7d5 e4d5 e5e4 f1b5	C31	KGD: Falkbeer, Nimzovich variation
e2e4 e7e5 f2f4 d7d5 e4d5 e5e4	C31	KGD: Falkbeer, 3...e4
e2e4 e7e5 f2f4 d7d5 e4d5	C31	KGD: Falkbeer counter-gambit
e2e4 e7e5 f2f4 d7d5 g1f3	C31	KGD: Falkbeer, Tartakower variation
e2e4 e7e5 f2f4 d7d5	C31	KGD: Falkbeer counter-gambit
e2e4 e7e5 f2f4 d8f6 g1f3 f6f4 b1c3 f8b4 f1c4	C30	KGD: Norwalde variation, Buecker gambit
e2e4 e7e5 f2f4 d8f6	C30	KGD: Norwalde variation
e2e4 e7e5 f2f4 d8h4 g2g3 h4e7	C30	KGD: Keene's defence
e2e4 e7e5 f2f4 e5f4 b1c3	C33	KGA: Keres (Mason-Steinitz) gambit
e2e4 e7e5 f2f4 e5f4 b2b3	C33	KGA: Orsini gambit
e2e4 e7e5 f2f4 e5f4 d1e2	C33	KGA: Carrera (Basman) gambit
e2e4 e7e5 f2f4 e5f4 d1f3	C33	KGA: Breyer gambit
e2e4 e7e5 f2f4 e5f4 d2d4	C33	KGA: Villemson (Steinitz) gambit
e2e4 e7e5 f2f4 e5f4 e1f2	C33	KGA: Tumbleweed gambit
e2e4 e7e5 f2f4 e5f4 f1c4 b7b5	C33	KGA: bishop's gambit, Bryan counter-gambit
e2e4 e7e5 f2f4 e5f4 f1c4 b8c6	C33	KGA: bishop's gambit, Maurian defence
e2e4 e7e5 f2f4 e5f4 f1c4 c7c6	C33	KGA: bishop's gambit, Ruy Lopez defence
e2e4 e7e5 f2f4 e5f4 f1c4 d7d5 c4d5 c7c6	C33	KGA: bishop's gambit, Anderssen variation
e2e4 e7e5 f2f4 e5f4 f1c4 d7d5 c4d5 d8h4 e1f1 f8d6	C33	KGA: bishop's gambit, Boren-Svenonius variation
e2e4 e7e5 f2f4 e5f4 f1c4 d7d5 c4d5 d8h4 e1f1 g7g5 g2g3	C33	KGA: bishop's gambit, Gifford variation
e2e4 e7e5 f2f4 e5f4 f1c4 d7d5 c4d5 g8f6	C33	KGA: bishop's gambit, Morphy variation
e2e4 e7e5 f2f4 e5f4 f1c4 d7d5	C33	KGA: bishop's gambit, Bledow variation
e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 b7b5	C33	KGA: bishop's gambit, Bryan counter-gambit
e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 b8c6	C33	KGA: bishop's gambit, Boden defence
e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 d7d5 c4d5 g7g5 g2g3	C33	KGA: bishop's gambit, Chigorin's attack
e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 f8c5	C33	KGA: bishop's gambit, Greco variation
e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 b1c3 f8g7 d2d4 d7d6 e4e5	C33	KGA: bishop's gambit, Grimm attack
e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 b1c3 f8g7 d2d4 g8e7 g2g3	C33	KGA: bishop's gambit, McDonnell attack
e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 b1c3 f8g7 d2d4 g8e7	C33	KGA: bishop's gambit, classical defence
e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 b1c3 f8g7 g2g3 f4g3 d1f3	C33	KGA: bishop's gambit, Fraser variation
e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 b1c3 f8g7 g2g3	C33	KGA: bishop's gambit, McDonnell attack
e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5 d1f3	C33	KGA: bishop's gambit, classical defence, Cozio attack
e2e4 e7e5 f2f4 e5f4 f1c4 d8h4 e1f1 g7g5	C33	KGA: bishop's gambit, classical defence
e2e4 e7e5 f2f4 e5f4 f1c4 f7f5 d1e2 d8h4 e1d1 f5e4 b1c3 e8d8	C33	KGA: Lopez-Gianutio counter-gambit, Hein variation
e2e4 e7e5 f2f4 e5f4 f1c4 f7f5	C33	KGA: bishop's gambit, Lopez-Gianutio counter-gambit
e2e4 e7e5 f2f4 e5f4 f1c4 g8e7	C33	KGA: bishop's gambit, Steinitz defence
e2e4 e7e5 f2f4 e5f4 f1c4 g8f6 b1c3 c7c6	C33	KGA: bishop's gambit, Jaenisch variation
e2e4 e7e5 f2f4 e5f4 f1c4 g8f6 b1c3 f8b4 e4e5	C33	KGA: bishop's gambit, Paulsen attack
e2e4 e7e5 f2f4 e5f4 f1c4 g8f6 b1c3	C33	KGA: bishop's gambit, Bogolyubov variation
e2e4 e7e5 f2f4 e5f4 f1c4 g8f6	C33	KGA: bishop's gambit, Cozio (Morphy) defence
e2e4 e7e5 f2f4 e5f4 f1c4	C33	KGA: bishop's gambit
e2e4 e7e5 f2f4 e5f4 f1d3	C33	KGA: Schurig gambit
e2e4 e7e5 f2f4 e5f4 f1e2	C33	KGA: Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit
e2e4 e7e5 f2f4 e5f4 g1f3 d7d5 e4d5 g8f6 f1b5 c7c6 d5c6 b7c6 b5c4 f6d5	C36	KGA: Abbazia defence, Botvinnik variation
e2e4 e7e5 f2f4 e5f4 g1f3 d7d5 e4d5 g8f6	C36	KGA: Abbazia defence, modern variation
e2e4 e7e5 f2f4 e5f4 g1f3 d7d5	C36	KGA: Abbazia defence (classical defence, modern defence[!])
e2e4 e7e5 f2f4 e5f4 g1f3 d7d6	C34	KGA: Fischer defence
e2e4 e7e5 f2f4 e5f4 g1f3 f7f5	C34	KGA: Gianutio counter-gambit
e2e4 e7e5 f2f4 e5f4 g1f3 f8e7 f1c4 e7h4 g2g3 f4g3 e1g1 g3h2 g1h1	C35	KGA: Cunningham, three pawns gambit
e2e4 e7e5 f2f4 e5f4 g1f3 f8e7 f1c4 e7h4 g2g3	C35	KGA: Cunningham, Bertin gambit
e2e4 e7e5 f2f4 e5f4 g1f3 f8e7 f1c4 g8f6	C35	KGA: Cunningham, Euwe defence
e2e4 e7e5 f2f4 e5f4 g1f3 f8e7	C35	KGA: Cunningham defence
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 b1c3	C37	KGA: Quaade gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 d2d4 g5g4 f3e5	C37	KGA: Soerensen gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 d2d4	C37	KGA: Rosentreter gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 b8c6	C37	KGA: Blachly gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 f8g7 e1g1	C38	KGA: Hanstein gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 f8g7 h2h4 h7h6 d2d4 d7d6 b1c3 c7c6 h4g5 h6g5 h1h8 g7h8 f3e5	C38	KGA: Greco gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 f8g7 h2h4 h7h6 d2d4 d7d6 d1d3	C38	KGA: Philidor gambit, Schultz variation
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 f8g7 h2h4	C38	KGA: Philidor gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 f8g7	C38	King's knight's gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 b1c3	C37	KGA: MacDonnell gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 c4f7 e8f7 e1g1 g4f3 d1f3 d8f6 d2d4 f6d4 c1e3 d4f6 b1c3	C37	KGA: Lolli gambit, Young variation
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 c4f7	C37	KGA: Lolli gambit (wild Muzio gambit)
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 d2d4	C37	KGA: Ghulam Kassim gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 d7d5	C37	KGA: Muzio gambit, Brentano defence
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 d8e7	C37	KGA: Muzio gambit, Kling and Horwitz counter-attack
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 b8c6	C37	KGA: Muzio gambit, Holloway defence
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8e7	C37	KGA: Muzio gambit, From defence
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8f6 e4e5 f6e5 c4f7	C37	KGA: double Muzio gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1 g4f3 d1f3 d8f6 e4e5 f6e5 d2d3 f8h6 b1c3 g8e7 c1d2 b8c6 a1e1	C37	KGA: Muzio gambit, Paulsen variation
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 e1g1	C37	KGA: Muzio gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 d8h4 e1f1 b8c6	C37	KGA: Herzfeld gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 d8h4 e1f1 f4f3	C37	KGA: Cochrane gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 d8h4 e1f1 g8h6 d2d4 d7d6	C37	KGA: Salvio gambit, Anderssen counter-attack
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5 d8h4 e1f1 g8h6 d2d4 f4f3	C37	KGA: Silberschmidt gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4 g5g4 f3e5	C37	KGA: Salvio gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 f1c4	C37	KGA: King's knight's gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 b8c6	C39	KGA: Kieseritsky, Neumann defence
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d7d5 d2d4 g8f6 c1f4 f6e4 b1d2	C39	KGA: Kieseritsky, Brentano defence, Caro variation
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d7d5 d2d4 g8f6 c1f4	C39	KGA: Kieseritsky, Brentano defence
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d7d5 d2d4 g8f6 e4d5 d8d5 b1c3 f8b4 e1f2	C39	KGA: Kieseritsky, Brentano defence, Kaplanek variation
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d7d5	C39	KGA: Kieseritsky, Brentano (Campbell) defence
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d7d6	C39	KGA: Kieseritsky, Kolisch defence
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d8e7 d2d4 f7f5 f1c4	C39	KGA: Kieseritsky, Salvio defence, Cozio variation
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 d8e7	C39	KGA: Kieseritsky, Salvio (Rosenthal) defence
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 f8e7	C39	KGA: Kieseritsky, Polerio defence
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 f8g7	C39	KGA: Kieseritsky, Paulsen defence
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 e5g4 d7d5	C39	KGA: Kieseritsky, Berlin defence, Riviere variation
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 f1c4 d7d5 e4d5 f8d6 e1g1	C39	KGA: Kieseritsky, Rice gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6 f1c4	C39	KGA: Kieseritsky, Berlin defence, 6.Bc4
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 g8f6	C39	KGA: Kieseritsky, Berlin defence
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 h7h5 f1c4 h8h7 d2d4 f8h6 b1c3	C39	KGA: Kieseritsky, long whip defence, Jaenisch variation
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3e5 h7h5	C39	KGA: Kieseritsky, long whip (Stockwhip, classical) defence
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 g8f6	C39	KGA: Allgaier, Schlechter defence
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 b1c3	C39	KGA: Allgaier, Blackburne gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 d1g4 g8f6 g4f4 f8d6	C39	KGA: Allgaier, Horny defence
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 d2d4 d7d5 c1f4 d5e4 f1c4 f7g7 f4e5	C39	KGA: Allgaier, Cook variation
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 d2d4	C39	KGA: Allgaier, Thorold variation
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 f1c4 d7d5 c4d5 f7g7 d2d4	C39	KGA: Allgaier, Urusov attack
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5 h7h6 g5f7 e8f7 f1c4	C39	KGA: Allgaier, Walker attack
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4 g5g4 f3g5	C39	KGA: Allgaier gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g7g5 h2h4	C39	King's knight's gambit
e2e4 e7e5 f2f4 e5f4 g1f3 g8e7	C34	KGA: Bonsch-Osmolovsky variation
e2e4 e7e5 f2f4 e5f4 g1f3 g8f6	C34	KGA: Schallop defence
e2e4 e7e5 f2f4 e5f4 g1f3 h7h6	C34	KGA: Becker defence
e2e4 e7e5 f2f4 e5f4 g1f3	C34	King's knight's gambit
e2e4 e7e5 f2f4 e5f4 h2h4	C33	KGA: Pawn's gambit (Stamma gambit)
e2e4 e7e5 f2f4 e5f4	C33	King's gambit accepted
e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 b1c3 b8d7	C30	KGD: classical, Hanham variation
e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 b1c3 g8f6 f1c4 b8c6 d2d3 c8g4 h2h3 g4f3 d1f3 e5f4	C30	KGD: classical, Svenonius variation
e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 b2b4	C30	KGD: classical, Heath variation
e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 c2c3 c8g4 f4e5 d6e5 d1a4	C30	KGD: classical, Marshall attack
e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 c2c3 f7f5 f4e5 d6e5 d2d4 e5d4 f1c4	C30	KGD: classical, Reti variation
e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 c2c3 f7f5	C30	KGD: classical counter-gambit
e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 c2c3	C30	KGD: classical, 4.c3
e2e4 e7e5 f2f4 f8c5 g1f3 d7d6 f4e5	C30	KGD: classical, Soldatenkov variation
e2e4 e7e5 f2f4 f8c5	C30	KGD: classical variation
e2e4 e7e5 f2f4 g8f6	C30	KGD: 2...Nf6
e2e4 e7e5 f2f4	C30	King's gambit
e2e4 e7e5 g1e2	C20	Alapin's opening
e2e4 e7e5 g1f3 b8c6 b1c3 f7f5	C46	Three knights: Winawer defence (Gothic defence)
e2e4 e7e5 g1f3 b8c6 b1c3 f8b4 c3d5 g8f6	C46	Three knights: Schlechter variation
e2e4 e7e5 g1f3 b8c6 b1c3 g7g6 d2d4 e5d4 c3d5	C46	Three knights: Steinitz, Rosenthal variation
e2e4 e7e5 g1f3 b8c6 b1c3 g7g6	C46	Three knights: Steinitz variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 a2a3	C46	Four knights: Gunsberg variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 e5d4 c3d5	C47	Four knights: Belgrade gambit
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 e5d4	C47	Four knights: Scotch, 4...exd4
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4 f8b4 f3e5	C47	Four knights: Scotch, Krause variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 d2d4	C47	Four knights: Scotch variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 a7a6 b5c6 d7c6 f3e5 f6e4 c3e4 d8d4 e1g1 d4e5 f1e1 c8e6 d2d4 e5d5	C48	Four knights: Spielmann variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 a7a6 b5c6	C48	Four knights: Ranken variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 b5e2 d4f3 e2f3 f8c5 e1g1 e8g8 d2d3 d7d6 c3a4 c5b6	C48	Four knights: Rubinstein counter-gambit Maroczy variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 b5e2	C48	Four knights: Rubinstein counter-gambit, 5.Be2
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 e1g1	C48	Four knights: Rubinstein counter-gambit, Henneberger variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 f3d4	C48	Four knights: Rubinstein counter-gambit, exchange variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4 f3e5 d8e7 f2f4	C48	Four knights: Rubinstein counter-gambit, Bogolyubov variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 c6d4	C48	Four knights: Rubinstein counter-gambit
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 b5c6	C49	Four knights: Nimzovich (Paulsen) variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 c3d5 f6d5 e4d5 e5e4	C49	Four knights: Gunsberg counter-attack
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 b4c3 b2c3 d7d5	C49	Four knights: Svenonius variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 b4c3 b2c3 d7d6 f1e1	C49	Four knights: Janowski variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 b4c3	C49	Four knights
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c1g5 b4c3 b2c3 d8e7 f1e1 c6d8 d3d4 c8g4	C49	Four knights: symmetrical, Capablanca variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c1g5 b4c3 b2c3 d8e7	C49	Four knights: symmetrical, Metger unpin
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c1g5 c6e7 f3h4 c7c6 b5c4 d6d5 c4b3 d8d6	C49	Four knights: symmetrical, Blake variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c1g5 c6e7	C49	Four knights: symmetrical, Pillsbury variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c1g5 c8e6	C49	Four knights: symmetrical, Tarrasch variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6 c3e2	C49	Four knights: symmetrical, Maroczy system
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d7d6	C49	Four knights: symmetrical variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3 d8e7 c3e2 d7d5	C49	Four knights: Alatortsev variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4 e1g1 e8g8 d2d3	C49	Four knights: double Ruy Lopez
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8b4	C49	Four knights: double Ruy Lopez
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8c5 e1g1 e8g8 f3e5 c6d4	C48	Four knights: Marshall variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8c5 e1g1 e8g8 f3e5 c6e5 d2d4 c5d6 f2f4 e5c6 e4e5 d6b4	C48	Four knights: Bardeleben variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5 f8c5	C48	Four knights: Spanish, classical defence
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1b5	C48	Four knights: Spanish variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f1c4	C46	Four knights: Italian variation
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6 f3e5	C46	Four knights: Schultze-Mueller gambit
e2e4 e7e5 g1f3 b8c6 b1c3 g8f6	C46	Four knights game
e2e4 e7e5 g1f3 b8c6 b1c3	C46	Three knights game
e2e4 e7e5 g1f3 b8c6 c2c3 d7d5 d1a4 c8d7	C44	Ponziani: Caro variation
e2e4 e7e5 g1f3 b8c6 c2c3 d7d5 d1a4 f7f6	C44	Ponziani: Steinitz variation
e2e4 e7e5 g1f3 b8c6 c2c3 d7d5 d1a4 g8f6	C44	Ponziani: Leonhardt variation
e2e4 e7e5 g1f3 b8c6 c2c3 f7f5 d2d4 d7d6 d4d5 f5e4 f3g5 c6b8 g5e4 g8f6 f1d3 f8e7	C44	Ponziani counter-gambit, Cordel variation
e2e4 e7e5 g1f3 b8c6 c2c3 f7f5 d2d4 d7d6 d4d5	C44	Ponziani counter-gambit, Schmidt attack
e2e4 e7e5 g1f3 b8c6 c2c3 f7f5	C44	Ponziani counter-gambit
e2e4 e7e5 g1f3 b8c6 c2c3 f8e7	C44	Ponziani: Romanishin variation
e2e4 e7e5 g1f3 b8c6 c2c3 g8e7	C44	Ponziani: Reti variation
e2e4 e7e5 g1f3 b8c6 c2c3 g8f6 d2d4 f6e4 d4d5 f8c5	C44	Ponziani: Fraser defence
e2e4 e7e5 g1f3 b8c6 c2c3 g8f6	C44	Ponziani: Jaenisch counter-attack
e2e4 e7e5 g1f3 b8c6 c2c3	C44	Ponziani opening
e2e4 e7e5 g1f3 b8c6 c2c4	C44	Dresden opening
e2e4 e7e5 g1f3 b8c6 d2d4 c6d4 f3e5 d4e6 f1c4 c7c6 e1g1 g8f6 e5f7	C44	Scotch: Cochrane variation
e2e4 e7e5 g1f3 b8c6 d2d4 c6d4	C44	Scotch: Lolli variation
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 c2c3 d4c3 b1c3 d7d6 f1c4 c8g4 e1g1 c6e5 f3e5 g4d1 c4f7 e8e7 c3d5	C44	Scotch: Sea-cadet mate
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 c2c3 d4c3 b1c3 f8b4 f1c4 g8f6	C44	Scotch: Goering gambit, Bardeleben variation
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 c2c3 d4c3 b1c3 f8b4	C44	Scotch: Goering gambit
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 c2c3	C44	Scotch: Goering gambit
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1b5	C44	Scotch: Relfsson gambit ('MacLopez')
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8b4 c2c3 d4c3 b2c3 b4a5 e4e5	C44	Scotch gambit: Cochrane variation
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8b4 c2c3 d4c3 b2c3	C44	Scotch gambit
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8b4 c2c3 d4c3 e1g1 c3b2 c1b2 g8f6 f3g5 e8g8 e4e5 c6e5	C44	Scotch gambit: Hanneken variation
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8b4	C44	Scotch gambit
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 e1g1 d7d6 c2c3 c8g4	C44	Scotch gambit: Anderssen (Paulsen, Suhle) counter-attack
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 f3g5 g8h6 d1h5	C44	Scotch gambit: Vitzhum attack
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 f3g5 g8h6 g5f7 h6f7 c4f7 e8f7 d1h5 g7g6 h5c5 d7d5	C44	Scotch gambit: Cochrane-Shumov defence
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8c5 f3g5	C44	Scotch gambit
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 f8e7	C44	Scotch gambit: Benima defence
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4 g8f6	C44	Scotch gambit: Dubois-Reti defence
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f1c4	C44	Scotch gambit
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 c6d4 d1d4 d7d6 f1d3	C45	Scotch: Ghulam Kassim variation
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 b1c3	C45	Scotch: Steinitz variation
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 f8b4 b1d2 h4e4 f1e2 e4g2 e2f3 g2h3 b5c7 e8d8 c7a8 g8f6 a2a3	C45	Scotch: Berger variation
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 f8b4 c1d2 h4e4 f1e2 e8d8 e1g1 b4d2 b1d2 e4g6	C45	Scotch: Rosenthal variation
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5 f8b4 c1d2	C45	Scotch game
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4b5	C45	Scotch: Horwitz attack
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4 d4f3	C45	Scotch: Fraser attack
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 d8h4	C45	Scotch: Pulling counter-attack
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 g8e7 d1d2 d7d5 d4b5 c5e3 d2e3 e8g8 b5c7 a8b8 c7d5 e7d5 e4d5 c6b4	C45	Scotch: Gottschall variation
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 g8e7 d1d2	C45	Scotch: Blackburne attack
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 g8e7 d4c2	C45	Scotch: Meitner variation
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 g8e7 f1b5 c6d8	C45	Scotch: Paulsen, Gunsberg defence
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 c2c3 g8e7 f1b5	C45	Scotch: Paulsen attack
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 c1e3 d8f6 d4b5	C45	Scotch: Blumenfeld attack
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 d4b3 c5b4	C45	Scotch: Romanishin variation
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5 d4b3	C45	Scotch: Potter variation
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 f8c5	C45	Scotch game
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 g8f6 d4c6 b7c6 b1d2	C45	Scotch: Tartakower variation
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 g8f6 d4c6 b7c6 e4e5	C45	Scotch: Mieses variation
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4 g8f6	C45	Scotch: Schmidt variation
e2e4 e7e5 g1f3 b8c6 d2d4 e5d4 f3d4	C45	Scotch game
e2e4 e7e5 g1f3 b8c6 d2d4	C44	Scotch opening
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 b7b5 a4b3 c6a5	C70	Ruy Lopez: Taimanov (chase/wing/accelerated counterthrust) variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 b7b5 a4b3 f8c5	C70	Ruy Lopez: Graz variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 b7b5	C70	Ruy Lopez: Caro variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 c6d4	C70	Ruy Lopez: Bird's defence deferred
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 a4c6 b7c6 d2d4 f7f6	C73	Ruy Lopez: modern Steinitz defence, Alapin variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 a4c6 b7c6 d2d4	C73	Ruy Lopez: modern Steinitz defence, Richter variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 b1c3	C71	Ruy Lopez: modern Steinitz defence, Three knights variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c3 c8d7 d2d4 g7g6	C76	Ruy Lopez: modern Steinitz defence, fianchetto (Bronstein) variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c3 c8d7 d2d4 g8e7	C75	Ruy Lopez: modern Steinitz defence, Rubinstein variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c3 c8d7	C75	Ruy Lopez: modern Steinitz defence
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c3 f7f5 e4f5 c8f5 e1g1	C74	Ruy Lopez: Siesta, Kopayev variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c3 f7f5	C74	Ruy Lopez: modern Steinitz defence, siesta variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c3	C74	Ruy Lopez: modern Steinitz defence
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 c2c4	C71	Ruy Lopez: modern Steinitz defence, Duras (Keres) variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 d2d4 b7b5 a4b3 c6d4 f3d4 e5d4 d1d4 c7c5	C71	Ruy Lopez: Noah's ark trap
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6 e1g1	C72	Ruy Lopez: modern Steinitz defence, 5.O-O
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 d7d6	C71	Ruy Lopez: modern Steinitz defence
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 f7f5	C70	Ruy Lopez: Schliemann defence deferred
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 f8b4	C70	Ruy Lopez: Alapin's defence deferred
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 f8c5	C70	Ruy Lopez: Classical defence deferred
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g7g6	C70	Ruy Lopez: fianchetto defence deferred
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8e7	C70	Ruy Lopez: Cozio defence deferred
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 a4c6	C77	Ruy Lopez: Treybal (Bayreuth) variation (exchange var. deferred)
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 b1c3	C77	Ruy Lopez: four knights (Tarrasch) variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 d1e2 b7b5 a4b3 f8e7 d2d4 d7d6 c2c3 c8g4	C77	Ruy Lopez: Wormald attack, Gruenfeld variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 d1e2	C77	Ruy Lopez: Wormald (Alapin) attack
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 d2d3 d7d6 c2c4	C77	Ruy Lopez: Morphy defence, Duras variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 d2d3	C77	Ruy Lopez: Anderssen variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 b7b5 a4b3 c8b7	C78	Ruy Lopez: Archangelsk (counterthrust) variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 b7b5 a4b3 d7d6 f3g5 d6d5 e4d5 c6d4 f1e1 f8c5 e1e5 e8f8	C78	Ruy Lopez: Rabinovich variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 b7b5 a4b3 d7d6	C78	Ruy Lopez: ...b5 & ...d6
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 b7b5 a4b3 f8e7 a2a4	C78	Ruy Lopez: Wing attack
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 d7d6 a4c6 b7c6 d2d4 c8g4	C79	Ruy Lopez: Steinitz defence deferred, Lipnitsky variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 d7d6 a4c6 b7c6 d2d4 f6e4 f1e1 f7f5 d4e5 d6d5 b1c3	C79	Ruy Lopez: Steinitz defence deferred, Boleslavsky variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 d7d6 a4c6 b7c6 d2d4 f6e4	C79	Ruy Lopez: Steinitz defence deferred, Rubinstein variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 d7d6	C79	Ruy Lopez: Steinitz defence deferred (Russian defence)
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 b1c3	C80	Ruy Lopez: open, Knorre variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d1e2	C80	Ruy Lopez: open, Tartakower variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 a2a4 c6d4 f3d4 e5d4 b1c3	C80	Ruy Lopez: open, Berger variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 a2a4 c6d4	C80	Ruy Lopez: open, Schlechter defence
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 c2c4	C80	Ruy Lopez: open, Harksen gambit
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c6e7	C80	Ruy Lopez: open, Zukertort variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 b1d2 e4c5 c2c3 d5d4 f3g5	C80	Ruy Lopez: open, Bernstein variation, Karpov gambit
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 b1d2	C80	Ruy Lopez: open, Bernstein variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 e4c5	C82	Ruy Lopez: open, Berlin variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8c5 b1d2 e8g8 b3c2 e4f2	C82	Ruy Lopez: open, Dilworth variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8c5 b1d2	C82	Ruy Lopez: open, St. Petersburg variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8c5 d1d3 c6e7	C82	Ruy Lopez: open, Motzko attack, Nenarokov variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8c5 d1d3	C82	Ruy Lopez: open, Motzko attack
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8c5	C82	Ruy Lopez: open, Italian variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8e7 b1d2 e8g8 d1e2	C83	Ruy Lopez: open, Malkin variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8e7 f1e1 e8g8 f3d4 c6e5	C83	Ruy Lopez: open, Breslau variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8e7 f1e1 e8g8 f3d4 d8d7 d4e6 f7e6 e1e4	C83	Ruy Lopez: open, Tarrasch trap
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8e7 f1e1	C83	Ruy Lopez: open, 9...Be7, 10.Re1
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3 f8e7	C83	Ruy Lopez: open, classical defence
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 c2c3	C82	Ruy Lopez: open, 9.c3
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 d1e2 f8e7 c2c4	C81	Ruy Lopez: open, Howell attack, Adam variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 d1e2 f8e7 f1d1 e8g8 c2c4 b5c4 b3c4 d8d7	C81	Ruy Lopez: open, Howell attack, Ekstroem variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6 d1e2	C81	Ruy Lopez: open, Howell attack
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5 c8e6	C80	Ruy Lopez: open, 8...Be6
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3 d7d5 d4e5	C80	Ruy Lopez: open, 8.de
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 a4b3	C80	Ruy Lopez: open, 7.Bb3
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 d4d5	C80	Ruy Lopez: open, Richter variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5 f3e5	C80	Ruy Lopez: open, Friess attack
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 b7b5	C80	Ruy Lopez: open, 6.d4 b5
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4 e5d4	C80	Ruy Lopez: open, Riga variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4 d2d4	C80	Ruy Lopez: open, 6.d4
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f6e4	C80	Ruy Lopez: open (Tarrasch) defence
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8c5	C78	Ruy Lopez: Moeller defence
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 a4c6	C85	Ruy Lopez: Exchange variation doubly deferred (DERLD)
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d1e2 b7b5 a4b3 d7d6	C86	Ruy Lopez: Worrall attack, solid line
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d1e2 b7b5 a4b3 e8g8	C86	Ruy Lopez: Worrall attack, sharp line
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d1e2	C86	Ruy Lopez: Worrall attack
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d2d4 e5d4 e4e5 f6e4 c2c3	C84	Ruy Lopez: closed, Basque gambit (North Spanish variation)
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 d2d4	C84	Ruy Lopez: closed, centre attack
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 c8b7	C88	Ruy Lopez: Trajkovic counter-attack
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 c6a5 b3c2 c7c5 d2d4 d8c7 a2a4	C88	Ruy Lopez: closed, Balla variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 c2c3 c6a5 b3c2 c7c5 d2d4 d8c7 h2h3 a5c6 d4d5 c6b8 b1d2 g7g5	C88	Ruy Lopez: closed, Leonhardt variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 d2d4 c6d4 f3d4 e5d4 d1d4 c7c5	C88	Ruy Lopez: Noah's ark trap
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 d7d6 d2d4	C88	Ruy Lopez: closed, 7...d6, 8.d4
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 a2a4	C88	Ruy Lopez: closed, anti-Marshall 8.a4
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 e5e4	C89	Ruy Lopez: Marshall, Herman Steiner variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 c7c6 b3d5 c6d5 d2d4 e7d6 e5e3	C89	Ruy Lopez: Marshall, Kevitz variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 c7c6 d2d4 e7d6 e5e1 d8h4 g2g3 h4h3 c1e3 c8g4 d1d3 a8e8 b1d2 e8e6 a2a4 h3h5	C89	Ruy Lopez: Marshall, main line, Spassky variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 c7c6 d2d4 e7d6 e5e1 d8h4 g2g3 h4h3	C89	Ruy Lopez: Marshall, main line, 14...Qh3
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 c7c6 d2d4	C89	Ruy Lopez: Marshall, main line, 12.d2d4
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5 e4d5 f6d5 f3e5 c6e5 e1e5 c7c6	C89	Ruy Lopez: Marshall counter-attack, 11...c6
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d5	C89	Ruy Lopez: Marshall counter-attack
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 a2a3	C90	Ruy Lopez: closed, Suetin variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 b3c2	C90	Ruy Lopez: closed, Lutikov variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 d2d3	C90	Ruy Lopez: closed, Pilnik variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 d2d4 c8g4	C91	Ruy Lopez: closed, Bogolyubov variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 d2d4	C91	Ruy Lopez: closed, 9.d4
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 a6a5	C92	Ruy Lopez: closed, Keres (9...a5) variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6a5 b3c2 c7c5 d2d4 a5c6	C96	Ruy Lopez: closed, Borisenko defence
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6a5 b3c2 c7c5 d2d4 d8c7 b1d2 a5c6 d4c5	C98	Ruy Lopez: closed, Chigorin, Rauzer attack
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6a5 b3c2 c7c5 d2d4 d8c7 b1d2 a5c6	C98	Ruy Lopez: closed, Chigorin, 12...Nc6
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6a5 b3c2 c7c5 d2d4 d8c7 b1d2 c5d4 c3d4	C99	Ruy Lopez: closed, Chigorin, 12...c5d4
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6a5 b3c2 c7c5 d2d4 d8c7 b1d2 c8d7 d2f1 f8e8 f1e3 g7g6	C97	Ruy Lopez: closed, Chigorin, Yugoslav system
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6a5 b3c2 c7c5 d2d4 d8c7	C97	Ruy Lopez: closed, Chigorin defence
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6a5 b3c2 c7c5 d2d4 f6d7	C96	Ruy Lopez: closed, Keres (...Nd7) defence
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6a5 b3c2 c7c5	C96	Ruy Lopez: closed (10...c5)
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6a5 b3c2 c7c6 d2d4 d8c7	C96	Ruy Lopez: closed, Rossolimo defence
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6a5 b3c2	C96	Ruy Lopez: closed (8...Na5)
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6b8 d2d4 b8d7 b1d2 c8b7 b3c2 c7c5	C95	Ruy Lopez: closed, Breyer, Gligoric variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6b8 d2d4 b8d7 f3h4	C95	Ruy Lopez: closed, Breyer, Simagin variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6b8 d2d4 b8d7	C95	Ruy Lopez: closed, Breyer, Borisenko variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6b8 d2d4	C95	Ruy Lopez: closed, Breyer, 10.d4
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c6b8	C94	Ruy Lopez: closed, Breyer defence
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c8b7	C92	Ruy Lopez: closed, Flohr-Zaitsev system (Lenzerheide variation)
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 c8e6	C92	Ruy Lopez: closed, Kholmov variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 f6d7	C92	Ruy Lopez: closed, Ragozin-Petrosian (`Keres') variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3 h7h6	C93	Ruy Lopez: closed, Smyslov defence
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6 h2h3	C92	Ruy Lopez: closed, 9.h3
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3 d7d6	C90	Ruy Lopez: closed (with ...d6)
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8 c2c3	C88	Ruy Lopez: closed, 8.c3
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3 e8g8	C88	Ruy Lopez: closed, 7...O-O
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 b7b5 a4b3	C88	Ruy Lopez: closed
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7 f1e1 d7d6	C87	Ruy Lopez: closed, Averbach variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1 f8e7	C84	Ruy Lopez: closed defence
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6 e1g1	C78	Ruy Lopez: 5.O-O
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4 g8f6	C77	Ruy Lopez: Morphy defence
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5a4	C70	Ruy Lopez
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 b1c3 f7f6 d2d3	C68	Ruy Lopez: exchange, Romanovsky variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 b1c3	C68	Ruy Lopez: exchange, Keres variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 d2d4 e5d4 d1d4 d8d4 f3d4 c8d7	C68	Ruy Lopez: exchange, Alekhine variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 e1g1 c8g4 h2h3 h7h5	C69	Ruy Lopez: exchange variation, Alapin gambit
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 e1g1 d8d6	C69	Ruy Lopez: exchange, Bronstein variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 e1g1 f7f6	C69	Ruy Lopez: exchange, Gligoric variation
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6 d7c6 e1g1	C69	Ruy Lopez: exchange variation, 5.O-O
e2e4 e7e5 g1f3 b8c6 f1b5 a7a6 b5c6	C68	Ruy Lopez: exchange variation
e2e4 e7e5 g1f3 b8c6 f1b5 c6a5	C60	Ruy Lopez: Pollock defence
e2e4 e7e5 g1f3 b8c6 f1b5 c6d4 f3d4 e5d4 e1g1 g8e7	C61	Ruy Lopez: Bird's defence, Paulsen variation
e2e4 e7e5 g1f3 b8c6 f1b5 c6d4	C61	Ruy Lopez: Bird's defence
e2e4 e7e5 g1f3 b8c6 f1b5 d7d6 d2d4 c8d7 b1c3 g8f6 b5c6	C62	Ruy Lopez: old Steinitz defence, Nimzovich attack
e2e4 e7e5 g1f3 b8c6 f1b5 d7d6 d2d4 c8d7 c2c4	C62	Ruy Lopez: old Steinitz defence, semi-Duras variation
e2e4 e7e5 g1f3 b8c6 f1b5 d7d6	C62	Ruy Lopez: old Steinitz defence
e2e4 e7e5 g1f3 b8c6 f1b5 d8e7	C60	Ruy Lopez: Vinogradov variation
e2e4 e7e5 g1f3 b8c6 f1b5 f7f5 b1c3	C63	Ruy Lopez: Schliemann defence, Berger variation
e2e4 e7e5 g1f3 b8c6 f1b5 f7f5	C63	Ruy Lopez: Schliemann defence
e2e4 e7e5 g1f3 b8c6 f1b5 f7f6	C60	Ruy Lopez: Nuernberg variation
e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 c2c3 c5b6	C64	Ruy Lopez: classical defence, Charousek variation
e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 c2c3 d8e7	C64	Ruy Lopez: classical defence, Boden variation
e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 c2c3 f7f5	C64	Ruy Lopez: Cordel gambit
e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 c2c3 g8f6 e1g1 e8g8 d2d4 c5b6	C64	Ruy Lopez: classical defence, Benelux variation
e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 c2c3	C64	Ruy Lopez: classical defence, 4.c3
e2e4 e7e5 g1f3 b8c6 f1b5 f8c5 e1g1 c6d4 b2b4	C64	Ruy Lopez: classical defence, Zaitsev variation
e2e4 e7e5 g1f3 b8c6 f1b5 f8c5	C64	Ruy Lopez: classical (Cordel) defence
e2e4 e7e5 g1f3 b8c6 f1b5 f8e7	C60	Ruy Lopez: Lucena defence
e2e4 e7e5 g1f3 b8c6 f1b5 g7g5	C60	Ruy Lopez: Brentano defence
e2e4 e7e5 g1f3 b8c6 f1b5 g7g6	C60	Ruy Lopez: fianchetto (Smyslov/Barnes) defence
e2e4 e7e5 g1f3 b8c6 f1b5 g8e7 b1c3 g7g6	C60	Ruy Lopez: Cozio defence, Paulsen variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8e7	C60	Ruy Lopez: Cozio defence
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d3 c6e7 f3e5 c7c6	C65	Ruy Lopez: Berlin defence, Mortimer trap
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d3 c6e7	C65	Ruy Lopez: Berlin defence, Mortimer variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d3 d7d6 b5c6	C65	Ruy Lopez: Berlin defence, Anderssen variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d3 d7d6 c2c4	C65	Ruy Lopez: Berlin defence, Duras variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d3 f8c5 c1e3)	C65	Ruy Lopez: Berlin defence, Kaufmann variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 d2d4 e5d4 e1g1	C65	Ruy Lopez: Berlin defence, Nyholm attack
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 d2d4 c8d7 b1c3 e5d4	C66	Ruy Lopez: closed Berlin defence, Wolf variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 d2d4 c8d7 b1c3 f8e7 b5c6	C66	Ruy Lopez: closed Berlin defence, Showalter variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 d2d4 c8d7 b1c3 f8e7 c1g5	C66	Ruy Lopez: closed Berlin defence, Bernstein variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 d2d4 c8d7 b1c3 f8e7 f1e1 e8g8	C66	Ruy Lopez: Berlin defence, Tarrasch trap
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 d2d4 c8d7 b1c3 f8e7	C66	Ruy Lopez: Berlin defence, hedgehog variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6 d2d4 f6d7	C66	Ruy Lopez: closed Berlin defence, Chigorin variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 d7d6	C66	Ruy Lopez: Berlin defence, 4.O-O, d6
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 a7a6	C67	Ruy Lopez: Berlin defence, Rosenthal variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 e4d6 b5a4	C67	Ruy Lopez: open Berlin defence, Showalter variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 e4d6 d4e5	C67	Ruy Lopez: open Berlin defence, l'Hermet variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 d7d5	C67	Ruy Lopez: Berlin defence, Trifunovic variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 e4d6 b5c6 b7c6 d4e5 d6b7 b1c3 e8g8 f1e1 b7c5 f3d4 c5e6 c1e3 e6d4 e3d4 c6c5	C67	Ruy Lopez: Berlin defence, Rio de Janeiro variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 e4d6 b5c6 b7c6 d4e5 d6b7 b2b3	C67	Ruy Lopez: Berlin defence, Pillsbury variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 e4d6 b5c6 b7c6 d4e5 d6b7 c2c4	C67	Ruy Lopez: Berlin defence, Zukertort variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 e4d6 b5c6 b7c6 d4e5 d6b7 f3d4	C67	Ruy Lopez: Berlin defence, Winawer attack
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d1e2 e4d6 b5c6 b7c6 d4e5 d6f5	C67	Ruy Lopez: Berlin defence, Cordel variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7 d4e5	C67	Ruy Lopez: Berlin defence, Minckwitz variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4 d2d4 f8e7	C67	Ruy Lopez: open Berlin defence, 5...Be7
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f6e4	C67	Ruy Lopez: Berlin defence, open variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1 f8c5	C65	Ruy Lopez: Berlin defence, Beverwijk variation
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6 e1g1	C65	Ruy Lopez: Berlin defence, 4.O-O
e2e4 e7e5 g1f3 b8c6 f1b5 g8f6	C65	Ruy Lopez: Berlin defence
e2e4 e7e5 g1f3 b8c6 f1b5	C60	Ruy Lopez (Spanish opening)
e2e4 e7e5 g1f3 b8c6 f1c4 c6d4 f3e5 d8g5 e5f7 g5g2 h1f1 g2e4 c4e2 d4f3	C50	Blackburne shilling gambit
e2e4 e7e5 g1f3 b8c6 f1c4 f7f5	C50	Rousseau gambit
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b1c3 g8f6	C50	Giuoco Piano: four knights variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 b7b5	C52	Evans gambit: Leonhardt variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 d7d6 c1g5	C52	Evans gambit: Sokolsky variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 d7d6 d1b3 d8d7 d4e5 d6e5 e1g1 a5b6 c1a3 c6a5 f3e5	C52	Evans gambit: Levenfish variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 d7d6 d1b3	C52	Evans gambit: Tartakower attack
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 d7d6	C52	Evans gambit
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d4c3 d1b3 d8f6 e4e5 f6g6 b1c3 g8e7 c1a3	C52	Evans gambit: compromised defence, Paulsen variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d4c3 d1b3 d8f6 e4e5 f6g6 b1c3 g8e7 f1d1	C52	Evans gambit: compromised defence, Potter variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d4c3	C52	Evans gambit: compromised defence
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6 d2d4 a5b6	C52	Evans gambit: Lasker defence
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6 d2d4 c8d7	C52	Evans gambit: Sanders-Alapin variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6 d2d4 c8g4	C52	Evans gambit: Alapin-Steinitz variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6 d2d4 e5d4 d1b3	C52	Evans gambit: Waller attack
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6	C52	Evans gambit
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 g8f6 d2d4 e8g8 f3e5	C52	Evans gambit: Richardson attack
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1	C52	Evans gambit
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5	C52	Evans gambit
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c6a5 c1g5 f7f6 g5e3	C51	Evans gambit: Steinitz variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c6a5 c1g5	C51	Evans gambit: Goering attack
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c8g4 d1a4 g4d7 a4b3 c6a5 c4f7 e8f8 b3c2	C51	Evans gambit: Fraser-Mortimer attack
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c8g4 d1a4	C51	Evans gambit: Fraser attack
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3 c8g4	C51	Evans gambit
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 b1c3	C51	Evans gambit: Morphy attack
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 d4d5 c6a5 c1b2 g8e7	C51	Evans gambit: Paulsen variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6 d4d5 c6a5 c1b2	C51	Evans gambit: Ulvestad variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6 c3d4 c5b6	C51	Evans gambit: normal variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4d6	C51	Evans gambit: Stone-Ware variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4e7 d2d4 c6a5	C51	Evans gambit: Cordel variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4e7	C51	Evans gambit: 5...Be7
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4f8	C51	Evans gambit: Mayet defence
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4	C51	Evans gambit
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 a2a4 a7a6 b1c3	C51	Evans gambit declined, Showalter variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 a2a4	C51	Evans gambit declined, 5.a4
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 d8g5 c4f7 e8e7 d1h5	C51	Evans gambit declined, Vasquez variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 d8g5 d1f3 g5e5 f3f7 e8d8 c1b2	C51	Evans gambit declined, Hicken variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 d8g5	C51	Evans gambit declined, Hirschbach variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 g8h6 d2d4 d7d6 c1h6 d6e5 h6g7 h8g8 c4f7 e8f7 g7e5 d8g5 b1d2	C51	Evans gambit declined, Pavlov variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 g8h6	C51	Evans gambit declined, Lange variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 c1b2	C51	Evans gambit declined, Cordel variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 d7d5	C51	Evans counter-gambit
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4	C51	Evans gambit declined
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d7d6 d2d4 e5d4 c3d4 c5b6	C53	Giuoco Piano: LaBourdonnais variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 d2d4 c5b6 c1g5	C53	Giuoco Piano: Mestel variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 d2d4 c5b6 d4d5 c6b8 d5d6	C53	Giuoco Piano: Eisinger variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 d2d4 c5b6 e1g1 g8f6 a2a4 a7a6 f1e1 d7d6 h2h3	C53	Giuoco Piano: Tarrasch variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 d2d4 c5b6	C53	Giuoco Piano: centre-holding variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7	C53	Giuoco Piano: close variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 b2b4	C53	Giuoco Piano: Bird's attack
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 b4c3 b2c3 d7d5 c1a3	C54	Giuoco Piano: Steinitz variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 b4c3 d4d5 c3f6 f1e1 c6e7 e1e4 d7d6 c1g5 f6g5 f3g5 e8g8 g5h7	C54	Giuoco Piano: Therkatz-Herzog variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 b4c3 d4d5 c3f6 f1e1 c6e7 e1e4 d7d6 g2g4	C54	Giuoco Piano: Moeller, bayonet attack
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 b4c3 d4d5	C54	Giuoco Piano: Moeller (Therkatz) attack
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 b4c3	C54	Giuoco Piano
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 e4c3 b2c3 b4c3 c1a3	C54	Giuoco Piano: Aitken variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 e4c3 b2c3 b4c3 d1b3 d7d5	C54	Giuoco Piano: Bernstein variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4 e1g1 e4c3	C54	Giuoco Piano: Greco variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3	C54	Giuoco Piano: Greco's attack
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 c1d2 f6e4 d2b4 c6b4 c4f7 e8f7 d1b3 d7d5 f3e5 f7f6 f2f3	C54	Giuoco Piano: Krause variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 e1f1	C54	Giuoco Piano: Cracow variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4	C54	Giuoco Piano
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 e4e5 d7d5 c4b5 f6e4 c3d4 c5b4	C53	Giuoco Piano: Anderssen variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 e4e5 d7d5	C53	Giuoco Piano
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 e4e5 f6e4 c4d5 e4f2 e1f2 d4c3 f2g3	C53	Giuoco Piano: Ghulam Kassim variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4	C53	Giuoco Piano
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6	C53	Giuoco Piano
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3	C53	Giuoco Piano
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c4f7	C50	Giuoco Piano: Jerome gambit
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 f7f5 f3g5 f5f4	C50	Giuoco Pianissimo: Dubois variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 g8f6 b1c3 d7d6 c1g5	C50	Giuoco Pianissimo: Canal variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 g8f6 b1c3	C50	Giuoco Pianissimo: Italian four knights variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 g8f6	C50	Giuoco Pianissimo
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3	C50	Giuoco Pianissimo
e2e4 e7e5 g1f3 b8c6 f1c4 f8c5	C50	Giuoco Piano
e2e4 e7e5 g1f3 b8c6 f1c4 f8e7 d2d4 e5d4 c2c3 g8f6 e4e5 f6e4	C50	Hungarian defence: Tartakower variation
e2e4 e7e5 g1f3 b8c6 f1c4 f8e7	C50	Hungarian defence
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d3	C55	Two knights defence (Modern bishop's opening)
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f6e4 f1e1 d7d5 b1c3	C56	two knights defence: Canal variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f6e4 f1e1 d7d5 c4d5 d8d5 b1c3 d5a5 c3e4 c8e6 c1g5 h7h6 g5h4 g7g5 e4f6 e8e7 b2b4	C56	two knights defence: Yurdansky attack
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f6e4	C56	Two knights defence
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 d7d5 e5f6 d5c4 f1e1 c8e6 f3g5 d8d5 b1c3 d5f5 c3e4 c5f8	C55	two knights: Max Lange attack, Rubinstein variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 d7d5 e5f6 d5c4 f1e1 c8e6 f3g5 d8d5 b1c3 d5f5 c3e4	C55	two knights: Max Lange attack, Marshall variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 d7d5 e5f6 d5c4 f1e1 c8e6 f3g5 d8d5 b1c3 d5f5 g2g4 f5g6 c3e4 c5b6 f2f4 e8c8	C55	two knights: Max Lange attack, Berger variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 d7d5 e5f6 d5c4 f1e1 c8e6 f3g5 g7g6	C55	two knights: Max Lange attack, Loman defence
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 d7d5 e5f6 d5c4 f1e1 c8e6 f6g7	C55	two knights: Max Lange attack, Schlechter variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 f6g4 c2c3	C55	two knights: Max Lange attack, Krause variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 f6g4	C55	two knights: Max Lange attack, Steinitz variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5	C55	two knights: Max Lange attack
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1	C55	Two knights defence
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e4e5 d7d5 c4b5 f6e4 f3d4 f8c5 d4c6 c5f2 e1f1 d8h4	C55	Two knights defence, Keidanz variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 f3g5	C55	Two knights defence, Perreux variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4	C55	Two knights defence
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 e1g1 f8c5 d2d4 c5d4 f3d4 c6d4 c1g5 d7d6 f2f4 d8e7 f4e5 d6e5 b1c3	C55	Giuoco piano: Holzhausen attack
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 e1g1 f8c5 d2d4 c5d4 f3d4 c6d4 c1g5 d7d6	C55	Giuoco piano
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 e1g1 f8c5 d2d4 c5d4 f3d4 c6d4 c1g5 h7h6 g5h4 g7g5 f2f4	C55	Giuoco piano: Rosentreter variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 b7b5	C57	two knights defence: Ulvestad variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 b5e2 h7h6 g5f3 e5e4 f3e5 d8c7	C59	two knights defence: Goering variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 b5e2 h7h6 g5f3 e5e4 f3e5 f8d6 d2d4 d8c7 c1d2	C59	two knights defence: Knorre variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 b5e2 h7h6 g5h3	C59	two knights defence: Steinitz variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 b5e2 h7h6	C59	Two knights defence
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 b5e2	C58	Two knights defence
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 d1f3 a8b8	C58	two knights defence: Colman variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 d1f3 c6b5	C58	two knights defence: Blackburne variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 d1f3 d8c7 b5d3	C58	two knights defence: Paoli variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6 d1f3	C58	two knights defence: Bogolyubov variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5	C58	Two knights defence
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 d2d3 h7h6 g5f3 e5e4 d1e2 a5c4 d3c4 f8c5 f3d2	C58	two knights defence: Yankovich variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 d2d3 h7h6 g5f3 e5e4 d1e2 a5c4 d3c4 f8e7	C58	two knights defence: Maroczy variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 d2d3	C58	two knights defence: Kieseritsky variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5	C58	two knights defence
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6d4 c2c3 b7b5 c4f1 f6d5 g5e4	C57	two knights defence: Fritz, Gruber variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6d4	C57	two knights defence: Fritz variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 d2d4 f8b4	C57	two knights defence: Pincus variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 d2d4	C57	two knights defence: Lolli attack
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 g5f7 e8f7 d1f3 f7e6 b1c3 c6b4 f3e4 c7c6 a2a3 b4a6 d2d4 a6c7	C57	two knights defence: Fegatello attack, Leonhardt variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 g5f7 e8f7 d1f3 f7e6 b1c3 c6e7	C57	two knights defence: Fegatello attack, Polerio defence
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 g5f7	C57	two knights defence: Fegatello attack
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 f8c5	C57	two knights defence: Wilkes Barre (Traxler) variation
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5	C57	Two knights defence
e2e4 e7e5 g1f3 b8c6 f1c4 g8f6	C55	Two knights defence
e2e4 e7e5 g1f3 b8c6 f1c4	C50	King's pawn game
e2e4 e7e5 g1f3 b8c6 f1e2 g8f6 d2d3 d7d5 b1d2	C44	Inverted Hanham
e2e4 e7e5 g1f3 b8c6 f1e2 g8f6 d2d4	C44	Tayler opening
e2e4 e7e5 g1f3 b8c6 f1e2	C44	Inverted Hungarian
e2e4 e7e5 g1f3 b8c6 f3e5 c6e5 d2d4	C44	Irish (Chicago) gambit
e2e4 e7e5 g1f3 b8c6 g2g3	C44	Konstantinopolsky opening
e2e4 e7e5 g1f3 b8c6	C44	King's pawn game
e2e4 e7e5 g1f3 d7d5 e4d5 f8d6	C40	QP counter-gambit: Maroczy gambit
e2e4 e7e5 g1f3 d7d5	C40	QP counter-gambit (elephant gambit)
e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 b1c3	C41	Philidor: Hanham, Schlechter variation
e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 c2c3	C41	Philidor: Hanham, Delmar variation
e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 e1g1 f8e7 d4e5	C41	Philidor: Hanham, Steiner variation
e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 e1g1	C41	Philidor: Hanham, Krause variation
e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 f3g5 g8h6 f2f4 f8e7 e1g1 e8g8 c2c3 d6d5	C41	Philidor: Hanham, Berger variation
e2e4 e7e5 g1f3 d7d6 d2d4 b8d7 f1c4 c7c6 f3g5	C41	Philidor: Hanham, Kmoch variation
e2e4 e7e5 g1f3 d7d6 d2d4 b8d7	C41	Philidor: Hanham variation
e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 d1d4 c8d7	C41	Philidor: Boden variation
e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f3d4 d6d5 e4d5	C41	Philidor: Paulsen attack
e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f3d4 g7g6	C41	Philidor: Larsen variation
e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f3d4 g8f6 b1c3 f8e7 f1e2 e8g8 e1g1 c7c5 d4f3 b8c6 c1g5 c8e6 f1e1	C41	Philidor: Berger variation
e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f3d4 g8f6	C41	Philidor: exchange variation
e2e4 e7e5 g1f3 d7d6 d2d4 e5d4 f3d4	C41	Philidor: exchange variation
e2e4 e7e5 g1f3 d7d6 d2d4 e5d4	C41	Philidor: exchange variation
e2e4 e7e5 g1f3 d7d6 d2d4 f7f5 b1c3	C41	Philidor: Philidor counter-gambit, Zukertort variation
e2e4 e7e5 g1f3 d7d6 d2d4 f7f5 d4e5 f5e4 f3g5 d6d5 e5e6 f8c5 b1c3	C41	Philidor: Philidor counter-gambit, Berger variation
e2e4 e7e5 g1f3 d7d6 d2d4 f7f5 d4e5 f5e4 f3g5 d6d5 e5e6	C41	Philidor: Philidor counter-gambit, del Rio attack
e2e4 e7e5 g1f3 d7d6 d2d4 f7f5	C41	Philidor: Philidor counter-gambit
e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 b1c3 b8d7 f1c4 f8e7 e1g1 e8g8 d1e2 c7c6 a2a4 e5d4	C41	Philidor: Nimzovich, Sozin variation
e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 b1c3 b8d7 f1c4 f8e7 f3g5 e8g8 c4f7	C41	Philidor: Nimzovich, Larobok variation
e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 b1c3 b8d7	C41	Philidor: Improved Hanham variation
e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 d4e5 f6e4 b1d2	C41	Philidor: Nimzovich, Sokolsky variation
e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 d4e5 f6e4 d1d5	C41	Philidor: Nimzovich, Rellstab variation
e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 d4e5	C41	Philidor: Nimzovich variation
e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 f1c4	C41	Philidor: Nimzovich, Klein variation
e2e4 e7e5 g1f3 d7d6 d2d4 g8f6 f3g5	C41	Philidor: Nimzovich, Locock variation
e2e4 e7e5 g1f3 d7d6 d2d4 g8f6	C41	Philidor: Nimzovich (Jaenisch) variation
e2e4 e7e5 g1f3 d7d6 d2d4	C41	Philidor's defence
e2e4 e7e5 g1f3 d7d6 f1c4 f7f5 d2d4 e5d4 f3g5 g8h6 g5h7	C41	Philidor: Lopez counter-gambit, Jaenisch variation
e2e4 e7e5 g1f3 d7d6 f1c4 f7f5	C41	Philidor: Lopez counter-gambit
e2e4 e7e5 g1f3 d7d6 f1c4 f8e7 c2c3	C41	Philidor: Steinitz variation
e2e4 e7e5 g1f3 d7d6	C41	Philidor's defence
e2e4 e7e5 g1f3 d8e7	C40	Gunderam defence
e2e4 e7e5 g1f3 d8f6	C40	Greco defence
e2e4 e7e5 g1f3 f7f5 f1c4 f5e4 f3e5 d7d5	C40	Latvian: Polerio variation
e2e4 e7e5 g1f3 f7f5 f1c4 f5e4 f3e5 d8g5 e5f7 g5g2 h1f1 d7d5 f7h8 g8f6	C40	Latvian: Behting variation
e2e4 e7e5 g1f3 f7f5 f1c4 f5e4 f3e5 g8f6	C40	Latvian: corkscrew counter-gambit
e2e4 e7e5 g1f3 f7f5 f1c4	C40	Latvian gambit, 3.Bc4
e2e4 e7e5 g1f3 f7f5 f3e5 b8c6	C40	Latvian: Fraser defence
e2e4 e7e5 g1f3 f7f5 f3e5 d8f6 d2d4 d7d6 e5c4 f5e4 c4e3	C40	Latvian: Nimzovich variation
e2e4 e7e5 g1f3 f7f5	C40	Latvian counter-gambit
e2e4 e7e5 g1f3 f7f6	C40	Damiano's defence
e2e4 e7e5 g1f3 g8f6 b1c3	C42	Petrov three knights game
e2e4 e7e5 g1f3 g8f6 d2d4 e5d4 e4e5 f6e4 d1d4	C43	Petrov: modern attack, main line
e2e4 e7e5 g1f3 g8f6 d2d4 e5d4 e4e5 f6e4 d1e2 e4c5 f3d4 b8c6	C43	Petrov: modern attack, Bardeleben variation
e2e4 e7e5 g1f3 g8f6 d2d4 e5d4 e4e5 f6e4 d1e2	C43	Petrov: modern attack, Steinitz variation
e2e4 e7e5 g1f3 g8f6 d2d4 e5d4 f1c4	C43	Petrov: Urusov gambit
e2e4 e7e5 g1f3 g8f6 d2d4 f6e4 f1d3 d7d5 f3e5 f8d6 e1g1 e8g8 c2c4 d6e5	C43	Petrov: modern attack, Trifunovic variation
e2e4 e7e5 g1f3 g8f6 d2d4 f6e4	C43	Petrov: modern attack, Symmetrical variation
e2e4 e7e5 g1f3 g8f6 d2d4	C43	Petrov: modern (Steinitz) attack
e2e4 e7e5 g1f3 g8f6 f1c4	C42	Petrov: Italian variation
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5c4	C42	Petrov: Paulsen attack
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 b1c3	C42	Petrov: Nimzovich attack
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 c2c4	C42	Petrov: Kaufmann attack
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d1e2	C42	Petrov: Cozio (Lasker) attack
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d3	C42	Petrov: French attack
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8d6 e1g1 e8g8 c2c4 c8g4 c4d5 f7f5 f1e1 d6h2	C42	Petrov: classical attack, Marshall trap
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8d6 e1g1 e8g8 c2c4 c8g4	C42	Petrov: classical attack, Tarrasch variation
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8d6	C42	Petrov: classical attack, Marshall variation
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8e7 e1g1 b8c6 c2c4	C42	Petrov: classical attack, Jaenisch variation
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8e7 e1g1 b8c6 f1e1 c8g4 c2c3 f7f5 b1d2	C42	Petrov: classical attack, Berger variation
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8e7 e1g1 b8c6 f1e1 c8g4 c2c3 f7f5 c3c4 e7h4	C42	Petrov: classical attack, Maroczy variation
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8e7 e1g1 b8c6 f1e1 c8g4 c2c3 f7f5 c3c4	C42	Petrov: classical attack, Krause variation
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8e7 e1g1 b8c6 f1e1	C42	Petrov: classical attack, Chigorin variation
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 d6d5 f1d3 f8e7 e1g1 e8g8	C42	Petrov: classical attack, Mason variation
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4 e4f6	C42	Petrov: classical attack, close variation
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f3 f6e4 d2d4	C42	Petrov: classical attack
e2e4 e7e5 g1f3 g8f6 f3e5 d7d6 e5f7	C42	Petrov: Cochrane gambit
e2e4 e7e5 g1f3 g8f6 f3e5 f6e4	C42	Petrov: Damiano variation
e2e4 e7e5 g1f3 g8f6	C42	Petrov's defence
e2e4 e7e5 g1f3	C40	King's knight opening
e2e4 e7e5	C20	King's pawn game
e2e4 e7e6 b1c3 d7d5 f2f4	C00	French: Pelikan variation
e2e4 e7e6 b1c3 d7d5 g1f3	C00	French: Two knights variation
e2e4 e7e6 b1c3	C00	French defence
e2e4 e7e6 b2b3	C00	French: Reti (Spielmann) variation
e2e4 e7e6 c2c4	C00	French defence, Steiner variation
e2e4 e7e6 d1e2	C00	French: Chigorin variation
e2e4 e7e6 d2d3 d7d5 b1d2 g8f6 g1f3 b8c6 f1e2	C00	French: Reversed Philidor formation
e2e4 e7e6 d2d3	C00	French: King's Indian attack
e2e4 e7e6 d2d4 a7a6	C00	St. George defence
e2e4 e7e6 d2d4 d7d5 b1c3 c7c5	C10	French: Marshall variation
e2e4 e7e6 d2d4 d7d5 b1c3 d5e4 c3e4 b8d7 g1f3 g8f6 e4f6 d7f6 f3e5	C10	French: Rubinstein, Capablanca line
e2e4 e7e6 d2d4 d7d5 b1c3 d5e4 c3e4 b8d7	C10	French: Rubinstein variation
e2e4 e7e6 d2d4 d7d5 b1c3 d5e4 c3e4 c8d7 g1f3 d7c6	C10	French: Fort Knox variation
e2e4 e7e6 d2d4 d7d5 b1c3 d5e4 c3e4 d8d5	C10	French: Frere (Becker) variation
e2e4 e7e6 d2d4 d7d5 b1c3 d5e4	C10	French: Rubinstein variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 c1d2	C15	French: Winawer, fingerslip variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 d8c7	C18	French: Winawer, classical variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 a3a4	C19	French: Winawer, advance, Smyslov variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 d1g4 d8c7 g4g7 h8g8 g7h7 c5d4 e1d1	C19	French: Winawer, advance, poisoned pawn, Euwe-Gligoric variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 d1g4 d8c7 g4g7 h8g8 g7h7 c5d4 g1e2	C19	French: Winawer, advance, poisoned pawn, Konstantinopolsky variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 d1g4	C19	French: Winawer, advance, poisoned pawn variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7 g1f3	C19	French: Winawer, advance, positional main line
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3 g8e7	C19	French: Winawer, advance, 6...Ne7
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 b4c3 b2c3	C18	French: Winawer, advance variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3 c5d4 a3b4 d4c3 g1f3	C17	French: Winawer, advance, Rauzer variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 a2a3	C17	French: Winawer, advance, 5.a3
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 c1d2	C17	French: Winawer, advance, Bogolyubov variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5 d1g4	C17	French: Winawer, advance, Russian variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 c7c5	C17	French: Winawer, advance variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5 d8d7	C16	French: Winawer, Petrosian variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 e4e5	C16	French: Winawer, advance variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 f1d3 c7c5 e4d5 d8d5 c1d2	C15	French: Winawer, Kondratiyev variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 g1e2 d5e4 a2a3 b4c3 e2c3 b8c6	C15	French: Winawer, Alekhine gambit, Kan variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 g1e2 d5e4 a2a3 b4c3	C15	French: Winawer, Alekhine gambit
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 g1e2 d5e4 a2a3 b4e7 c3e4 g8f6 e2g3 e8g8 f1e2 b8c6	C15	French: Winawer, Alekhine gambit, Alatortsev variation
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4 g1e2	C15	French: Winawer, Alekhine (Maroczy) gambit
e2e4 e7e6 d2d4 d7d5 b1c3 f8b4	C15	French: Winawer (Nimzovich) variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1e3	C11	French: Henneberger variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 d5e4	C11	French: Burn variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4d5 d8d5 g5f6 g7f6 d1d2 d5a5	C12	French: MacCutcheon, Bogolyubov variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 e5f6 h6g5 f6g7 h8g8 h2h4 g5h4 d1g4	C12	French: MacCutcheon, Grigoriev variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 e5f6	C12	French: MacCutcheon, Chigorin variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5c1	C12	French: MacCutcheon, Dr. Olland (Dutch) variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5d2 b4c3 b2c3 f6e4 d1g4 e8f8 d2c1	C12	French: MacCutcheon, Duras variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5d2 b4c3 b2c3 f6e4 d1g4 g7g6	C12	French: MacCutcheon, Lasker variation, 8...g6
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5d2 b4c3	C12	French: MacCutcheon, Lasker variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5d2 f6d7	C12	French: MacCutcheon, Tartakower variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5e3	C12	French: MacCutcheon, Janowski variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5 h7h6 g5h4	C12	French: MacCutcheon, Bernstein variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4 e4e5	C12	French: MacCutcheon, advance variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8b4	C12	French: MacCutcheon variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 c3b5	C14	French: classical, Alapin variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 d1d2	C14	French: classical, Rubinstein variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 d1g4	C14	French: classical, Pollock variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 f1d3	C14	French: classical, Tarrasch variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 f2f4 e8g8 g1f3 c7c5 d1d2 b8c6 e1c1 c5c4	C14	French: classical, Stahlberg variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7 f2f4	C14	French: classical, Steinitz variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 g5e7 d8e7	C14	French: classical variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4 a7a6	C13	French: Albin-Alekhine-Chatard attack, Maroczy variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4 c7c5	C13	French: Albin-Alekhine-Chatard attack, Breyer variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4 e8g8	C13	French: Albin-Alekhine-Chatard attack, Spielmann variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4 f7f6	C13	French: Albin-Alekhine-Chatard attack, Teichmann variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6d7 h2h4	C13	French: Albin-Alekhine-Chatard attack
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6e4	C13	French: classical, Tartakower variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6g8 g5e3 b7b6	C13	French: classical, Frankfurt variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 e4e5 f6g8	C13	French: classical, Vistaneckis (Nimzovich) variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 g5f6 e7f6 e4e5 f6e7 d1g4	C13	French: classical, Anderssen-Richter variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7 g5f6	C13	French: classical, Anderssen variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 c1g5 f8e7	C13	French: classical
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 d1g4	C11	French: Steinitz, Gledhill attack
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 f2f4 c7c5 d4c5 b8c6 a2a3 f8c5 d1g4 e8g8 g1f3 f7f6	C11	French: Steinitz, Brodsky-Jones variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 f2f4 c7c5 d4c5 b8c6	C11	French: Steinitz variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 f2f4 c7c5 d4c5 f8c5 d1g4	C11	French: Steinitz, Bradford attack
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 f2f4 c7c5 g1f3 b8c6 c1e3	C11	French: Steinitz, Boleslavsky variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5 f6d7 f2f4 c7c5 g1f3	C11	French: Steinitz variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 e4e5	C11	French: Steinitz variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6 f1d3	C11	French: Swiss variation
e2e4 e7e6 d2d4 d7d5 b1c3 g8f6	C11	French defence
e2e4 e7e6 d2d4 d7d5 b1c3	C10	French: Paulsen variation
e2e4 e7e6 d2d4 d7d5 b1d2 b8c6 g1f3 g8f6	C04	French: Tarrasch, Guimard main line
e2e4 e7e6 d2d4 d7d5 b1d2 b8c6	C03	French: Tarrasch, Guimard variation
e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 d8d5 g1f3 c5d4 f1c4 d5d8	C07	French: Tarrasch, Eliskases variation
e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 e6d5 g1f3 b8c6	C09	French: Tarrasch, open variation, main line
e2e4 e7e6 d2d4 d7d5 b1d2 c7c5 e4d5 e6d5	C08	French: Tarrasch, open, 4.ed ed
e2e4 e7e6 d2d4 d7d5 b1d2 c7c5	C07	French: Tarrasch, open variation
e2e4 e7e6 d2d4 d7d5 b1d2 f7f5	C03	French: Tarrasch, Haberditz variation
e2e4 e7e6 d2d4 d7d5 b1d2 g8f6 e4e5 f6d7 f1d3 c7c5 c2c3 b7b6	C05	French: Tarrasch, Botvinnik variation
e2e4 e7e6 d2d4 d7d5 b1d2 g8f6 e4e5 f6d7 f1d3 c7c5 c2c3 b8c6 g1e2 c5d4 c3d4 d7b6	C06	French: Tarrasch, Leningrad variation
e2e4 e7e6 d2d4 d7d5 b1d2 g8f6 e4e5 f6d7 f1d3 c7c5 c2c3 b8c6 g1e2 c5d4 c3d4	C06	French: Tarrasch, closed variation, main line
e2e4 e7e6 d2d4 d7d5 b1d2 g8f6 e4e5 f6d7 f1d3 c7c5 c2c3 b8c6	C05	French: Tarrasch, closed variation
e2e4 e7e6 d2d4 d7d5 b1d2 g8f6	C05	French: Tarrasch, closed variation
e2e4 e7e6 d2d4 d7d5 b1d2	C03	French: Tarrasch
e2e4 e7e6 d2d4 d7d5 c1e3	C00	French: Alapin variation
e2e4 e7e6 d2d4 d7d5 e4d5 e6d5 b1c3 g8f6 c1g5 b8c6	C01	French: exchange, Bogolyubov variation
e2e4 e7e6 d2d4 d7d5 e4d5 e6d5 b1c3 g8f6 c1g5	C01	French: exchange, Svenonius variation
e2e4 e7e6 d2d4 d7d5 e4d5	C01	French: exchange variation
e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 b8c6 g1f3 c8d7	C02	French: advance, Euwe variation
e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 b8c6 g1f3 d8b6 f1d3	C02	French: advance, Milner-Barry gambit
e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 b8c6 g1f3	C02	French: advance, Paulsen attack
e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 b8c6	C02	French: advance variation
e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3 d8b6 g1f3 c8d7	C02	French: advance, Wade variation
e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 c2c3	C02	French: advance variation
e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 d1g4	C02	French: advance, Nimzovich variation
e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 d4c5	C02	French: advance, Steinitz variation
e2e4 e7e6 d2d4 d7d5 e4e5 c7c5 g1f3	C02	French: advance, Nimzovich system
e2e4 e7e6 d2d4 d7d5 e4e5	C02	French: advance variation
e2e4 e7e6 d2d4 d7d5 f1d3	C00	French: Schlechter variation
e2e4 e7e6 d2d4 d7d5	C00	French defence
e2e4 e7e6 d2d4 d7d6	C00	Lengfellner system
e2e4 e7e6 d2d4	C00	French defence
e2e4 e7e6 e4e5	C00	French: Steinitz attack
e2e4 e7e6 f2f4	C00	French: Labourdonnais variation
e2e4 e7e6 g1f3 d7d5 e4e5 c7c5 b2b4	C00	French: Wing gambit
e2e4 e7e6 g1f3	C00	French defence
e2e4 e7e6	C00	French defence
e2e4 f7f5	B00	Fred
e2e4 f7f6 d2d4 e8f7	B00	Fried fox defence
e2e4 f7f6	B00	Barnes defence
e2e4 g7g5	B00	Reversed Grob (Borg/Basman defence/macho Grob)
e2e4 g7g6 d2d4 f8g7 b1c3 c7c6 f2f4 d7d5 e4e5 h7h5	B06	Robatsch defence: Gurgenidze variation
e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 f2f4	B06	Robatsch defence: Pseudo-Austrian attack
e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 g1f3 c7c6	B06	Robatsch defence: two knights, Suttles variation
e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 g1f3	B06	Robatsch defence: two knights variation
e2e4 g7g6 d2d4 f8g7 b1c3 d7d6	B06	Robatsch (modern) defence
e2e4 g7g6 d2d4 f8g7 b1c3	B06	Robatsch defence
e2e4 g7g6 d2d4 f8g7 f2f4	B06	Robatsch defence: three pawns attack
e2e4 g7g6 d2d4 f8g7 g1f3 d7d6 c2c3	B07	Robatsch defence: Geller's system
e2e4 g7g6 d2d4 f8g7 g1f3 d7d6 c2c4 c8g4	A41	Robatsch defence: Rossolimo variation
e2e4 g7g6 d2d4 f8g7	B06	Robatsch (modern) defence
e2e4 g7g6 d2d4 g8f6 e4e5 f6h5 g2g4 h5g7	B06	Norwegian defence
e2e4 g7g6	B06	Robatsch (modern) defence
e2e4 g8f6 b1c3 d7d5 e4e5 f6d7 e5e6	B02	Alekhine's defence: Spielmann variation
e2e4 g8f6 b1c3 d7d5	B02	Alekhine's defence: Scandinavian variation
e2e4 g8f6 d2d3	B02	Alekhine's defence: Maroczy variation
e2e4 g8f6 e4e5 f6d5 b1c3	B02	Alekhine's defence: Saemisch attack
e2e4 g8f6 e4e5 f6d5 b2b3	B02	Alekhine's defence: Welling variation
e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 b2b3	B02	Alekhine's defence: Steiner variation
e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 f1c4 e7e6 b1c3 d7d6	B02	Alekhine's defence: two pawns' attack, Mikenas variation
e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5	B02	Alekhine's defence: two pawns' (Lasker's) attack
e2e4 g8f6 e4e5 f6d5 c2c4	B02	Alekhine's defence
e2e4 g8f6 e4e5 f6d5 d2d4 b7b5	B03	Alekhine's defence: O'Sullivan gambit
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 e5d6 c7d6 g1f3 g7g6 f1e2 f8g7 e1g1 e8g8 h2h3 b8c6 b1c3 c8f5 c1f4	B03	Alekhine's defence: exchange, Karpov variation
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 e5d6	B03	Alekhine's defence: exchange variation
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 c8f5	B03	Alekhine's defence: four pawns attack, Trifunovic variation
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 c1e3 c8f5 b1c3 e7e6 g1f3 d8d7 f1e2 e8c8 e1g1 f8e7	B03	Alekhine's defence: four pawns attack, Tartakower variation
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 c1e3	B03	Alekhine's defence: four pawns attack, 7.Be3
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 g1f3 c8g4 e5e6 f7e6 c4c5	B03	Alekhine's defence: four pawns attack, Ilyin-Genevsky var.
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6	B03	Alekhine's defence: four pawns attack, 6...Nc6
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 c8f5 b1c3 e7e6 g1f3 f8e7 f1e2 e8g8 e1g1 f7f6	B03	Alekhine's defence: four pawns attack, Korchnoi variation
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 g7g5	B03	Alekhine's defence: four pawns attack, Planinc variation
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 g7g6	B03	Alekhine's defence: four pawns attack, fianchetto variation
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4	B03	Alekhine's defence: four pawns attack
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4	B03	Alekhine's defence
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 f1c4	B03	Alekhine's defence: Balogh variation
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 c2c4 d5b6 d4d5	B05	Alekhine's defence: modern, Vitolins attack
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 c2c4	B05	Alekhine's defence: modern, Alekhine variation
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 f1e2 c7c6	B05	Alekhine's defence: modern, Flohr variation
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 h2h3	B05	Alekhine's defence: modern, Panov variation
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4	B05	Alekhine's defence: modern variation, 4...Bg4
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 d5b6	B04	Alekhine's defence: modern, Schmid variation
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 d6e5	B04	Alekhine's defence: modern, Larsen variation
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 g7g6 f1c4 d5b6 c4b3 f8g7 a2a4	B04	Alekhine's defence: modern, Keres variation
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 g7g6	B04	Alekhine's defence: modern, fianchetto variation
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3	B04	Alekhine's defence: modern variation
e2e4 g8f6 e4e5 f6d5 d2d4 d7d6	B03	Alekhine's defence
e2e4 g8f6 e4e5 f6d5 d2d4	B03	Alekhine's defence
e2e4 g8f6 e4e5 f6d5 f1c4 d5b6 c4b3 c7c5 d2d3	B02	Alekhine's defence: Kmoch variation
e2e4 g8f6 e4e5 f6d5	B02	Alekhine's defence
e2e4 g8f6 e4e5 f6e4	B02	Alekhine's defence: Mokele Mbembe (Buecker) variation
e2e4 g8f6 e4e5 f6g8	B02	Alekhine's defence: Brooklyn defence
e2e4 g8f6 f1c4	B02	Alekhine's defence: Krejcik variation
e2e4 g8f6	B02	Alekhine's defence
e2e4 g8h6 d2d4 g7g6 c2c4 f7f6	B00	Hippopotamus defence
e2e4 h7h6	B00	Carr's defence
e2e4	B00	King's pawn opening
f2f3 e7e5 e1f2	A00	Hammerschlag (Fried fox/Pork chop opening)
f2f3	A00	Gedult's opening
f2f4 d7d5 c2c4	A03	Mujannah opening
f2f4 d7d5 e2e4	A03	Bird's opening: Williams gambit
f2f4 d7d5 g1f3 g8f6 e2e3 c7c5	A03	Bird's opening: Lasker variation
f2f4 d7d5	A03	Bird's opening
f2f4 e7e5 f4e5 d7d6 e5d6 f8d6 g1f3 g7g5	A02	Bird: From gambit, Lasker variation
f2f4 e7e5 f4e5 d7d6 e5d6 f8d6 g1f3 g8h6 d2d4	A02	Bird: From gambit, Lipke variation
f2f4 e7e5	A02	Bird: From gambit
f2f4 f7f5 e2e4 f5e4 b1c3 g8f6 g2g4	A02	Bird's opening, Swiss gambit
f2f4 g7g5	A02	Bird: Hobbs gambit
f2f4	A02	Bird's opening
g1f3 d7d5 b2b3	A06	Reti: Nimzovich-Larsen attack
g1f3 d7d5 b2b4	A06	Santasiere's folly
g1f3 d7d5 c2c4 d5c4 e2e3 c8e6	A09	Reti accepted: Keres variation
g1f3 d7d5 c2c4 d5c4	A09	Reti accepted
g1f3 d7d5 c2c4 d5d4	A09	Reti: advance variation
g1f3 d7d5 c2c4	A09	Reti opening
g1f3 d7d5 d2d3	A06	Reti: old Indian attack
g1f3 d7d5 e2e4	A06	Tennison (Lemberg, Zukertort) gambit
g1f3 d7d5 g2g3 c7c5 f1g2 b8c6 e1g1 e7e6 d2d3 g8f6 b1d2 f8e7 e2e4 e8g8 f1e1	A08	Reti: King's Indian attack, French variation
g1f3 d7d5 g2g3 c7c5 f1g2	A08	Reti: King's Indian attack
g1f3 d7d5 g2g3 c7c5	A07	Reti: King's Indian attack (with ...c5)
g1f3 d7d5 g2g3 c8g4 f1g2 b8d7	A07	Reti: King's Indian attack, Keres variation
g1f3 d7d5 g2g3 g7g6 f1g2 f8g7 e1g1 e7e5 d2d3 g8e7	A07	Reti: King's Indian attack, Pachman system
g1f3 d7d5 g2g3 g7g6	A07	Reti: King's Indian attack
g1f3 d7d5 g2g3 g8f6 f1g2 c7c6 e1g1 c8g4	A07	Reti: King's Indian attack, Yugoslav variation
g1f3 d7d5 g2g3	A07	Reti: King's Indian attack (Barcza system)
g1f3 d7d5	A06	Reti opening
g1f3 d7d6 e2e4 c8g4	A04	Reti: Wade defence
g1f3 d7d6	A04	Reti opening
g1f3 f7f5 d2d3 g8f6 e2e4	A04	Reti: Lisitsin gambit deferred
g1f3 f7f5 e2e4	A04	Reti: Pirc-Lisitsin gambit
g1f3 f7f5	A04	Reti v Dutch
g1f3 g7g5	A04	Reti: Herrstroem gambit
g1f3 g8f6 g2g3 b7b5	A05	Reti: King's Indian attack, Spassky's variation
g1f3 g8f6 g2g3 g7g6 b2b4	A05	Reti: King's Indian attack, Reti-Smyslov variation
g1f3 g8f6 g2g3 g7g6	A05	Reti: King's Indian attack
g1f3 g8f6	A05	Reti opening
g1f3	A04	Reti opening
g1h3 d7d5 g2g3 e7e5 f2f4 c8h3 f1h3 e5f4	A00	Amar gambit
g1h3	A00	Amar (Paris) opening
g2g3 e7e5 g1f3	A00	Benko's opening: reversed Alekhine
g2g3 h7h5	A00	Lasker simul special
g2g3	A00	Benko's opening
g2g4 d7d5 f1g2 c7c6 g4g5	A00	Grob: spike attack
g2g4 d7d5 f1g2 c8g4 c2c4 d5d4	A00	Grob: Romford counter-gambit
g2g4 d7d5 f1g2 c8g4 c2c4	A00	Grob: Fritz gambit
g2g4	A00	Grob's attack
h2h3 e7e5 a2a3	A00	Global opening
h2h3	A00	Clemenz (Mead's, Basman's or de Klerk's) opening
h2h4	A00	Anti-Borg (Desprez) opening