[Event "IBM"]
[Site "Amsterdam"]
[Date "1967.??.??"]
[Round "4"]
[White "Pachman, Ludek"]
[Black "Kotov, Alexander"]
[Result "0-1"]

1. d4 d6 2. Nf3 g6 3. g3 Bg7 4. Bg2 Nc6 5. O-O e5 6. dxe5 dxe5 7. Qxd8+ Nxd8 8. Nc3 Ne6 9. Rd1 Ne7 10. e4 c6 11. b3 b6 12. Bb2 O-O 13. Rd2 Bh6 14. Rd6 f6 15. Rad1 c5 16. Nb5 Kf7 17. a4 Nd4 18. Nfxd4 cxd4 19. h3 a6 20. Na3 b5 21. axb5 axb5 22. Nxb5 Ra2 23. Rb1 Bd2 24. Bf1 Kg7 25. Ba3 f5 26. Rb6 Bg5 27. h4 Bf6 28. Bd3 Rd8 29. h5 fxe4 30. h6+ Kxh6 31. Rxf6 exd3 32. cxd3 Nd5 33. Rf7 g5 34. Rc1 Bd7 35. Nc7 Nc3 36. Be7 Rc8 37. Re1 Ne2+ 38. Rxe2 Rxe2 39. Bf8+ Kg6 40. Rg7+ Kf5 41. Rxd7 0-1