[Event "Alekhine memorial"]
[Round "7"]
[Site "Moscow"]
[Date "1971.12.03"]
[White "Lengyel, Levente"]
[WhiteElo "2485"]
[Black "Kortschnoj, Viktor"]
[BlackElo "2670"]
[Result "1/2-1/2"]
[ECO "E47"]
[Opening "Nimzo-Indian, 4.e3 O-O, 5.Bd3"]
 1. d4   Nf6
 2. c4   e6
 3. Nc3  Bb4
 4. e3   O-O
 5. Bd3  c5
 6. Nf3  d5
 7. O-O  cxd4
 8. exd4 dxc4
 9. Bxc4 a6
10. Bg5  b5
11. Bd3  Bb7
12. a4   bxa4
13. Rxa4 Be7
14. Qe2  Bc6
15. Raa1 a5
16. Rfd1 Nbd7
17. Bc4  Nb6
18. Ne5  Bb7
19. Bb3  Nfd5
20. Bxe7 Qxe7
21. Ne4  a4
22. Bc2  f5
23. Nc5  a3
24. Qb5  axb2
25. Qxb2 Rfb8
1/2-1/2