[Event "IBM"]
[Site "Amsterdam"]
[Date "1963.??.??"]
[Round "7"]
[White "De Rooi, Paul"]
[Black "Czerniak, Moshe"]
[Result "1-0"]

1. c4 Nf6 2. Nc3 g6 3. d4 c5 4. d5 Bg7 5. e4 d6 6. Bd3 O-O 7. Nge2 e5 8. Bg5 h6 9. Bh4 Nbd7 10. f3 Re8 11. g4 Nf8 12. Bf2 g5 13. h4 Ng6 14. hxg5 hxg5 15. Qd2 Nf4 16. O-O-O a6 17. Ng3 Bd7 18. Rh2 b5 19. Rdh1 Rb8 20. Nd1 bxc4 21. Bb1 Rb4 22. Ne3 Qb6 23. Be1 Rb8 24. a3 Ra4 25. Qd1 Nd3+ 26. Bxd3 cxd3 27. Qxd3 c4 28. Qc3 Qc5 29. Rc2 Bb5 30. Nef5 Bd7 31. Bf2 Qc7 32. Be3 Nh7 33. Ne7+ Kf8 34. Rxh7 Bf6 35. Ngf5 Bxf5 36. Nxf5 Ke8 37. Nh6 Qd8 38. Nxf7 Qe7 39. Nxg5 Qf8 40. Nf7 Bg7 41. Rxg7 Qxg7 42. Nxd6+ Kf8 43. Rh2 Kg8 44. Nf5 1-0