[Event "Capablanca memorial 2nd"]
[Round "5"]
[Site "Havana"]
[Date "1963"]
[White "Ortega, Rogelio"]
[Black "Ivkov, Borislav"]
[Result "0-1"]
[ECO "B97"]
[Opening "Sicilian, Najdorf, 7...Qb6 including Poisoned Pawn Variation"]
 1. e4   c5
 2. Nf3  d6
 3. d4   cxd4
 4. Nxd4 Nf6
 5. Nc3  a6
 6. Bg5  e6
 7. f4   Qb6
 8. Qd2  Qxb2
 9. Rb1  Qa3
10. e5   dxe5
11. fxe5 Nfd7
12. Bc4  Be7
13. Rb3  Qc5
14. Nd5  Bxg5
15. Qxg5 g6
16. Rf1  exd5
17. e6   Qxd4
18. exf7+ Kf8
19. Re3  Kg7
20. c3   Qxc4
21. h4   Nc6
22. h5   Rf8
23. h6+  Kh8
24. Rff3 Qc5
25. Re8  b6
26. Re6  Bb7
27. Rxg6 Qe7+
28. Qxe7 Nxe7
29. Re6  Ng6
30. Rf5  Nde5
31. Rxb6 Rxf7
32. Rxf7 Nxf7
33. Rxb7 Nxh6
34. Rd7  Nf4
35. g3   Nd3+
36. Kd2  Nc5
37. Rxd5 Ne4+
38. Ke3  Nxg3
39. c4   Nhf5+
40. Kd3  Ne7
41. Rd7  Nc6
42. Rc7  Rd8+
0-1