[Event "IBM"]
[Site "Amsterdam"]
[Date "1973.??.??"]
[Round "11"]
[White "Ribli, Zoltan"]
[Black "Radulov, Ivan"]
[Result "1-0"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. d4 b6 6. c4 Bb7 7. Nc3 O-O 8. Ne5 c6 9. e4 Nbd7 10. Nxc6 Bxc6 11. exd5 exd5 12. cxd5 Bb7 13. d6 Bxg2 14. dxe7 Qxe7 15. Kxg2 Rfd8 16. Be3 Ne5 17. Qe2 Qb7+ 18. f3 Nc6 19. Rfd1 Rd7 20. Bf2 Rad8 21. Qc4 h6 22. Rd2 Rc8 23. Qe2 Re8 24. Qf1 g5 25. h3 Red8 26. Rad1 Ne7 27. Qd3 Kg7 28. Kh2 Ng6 29. d5 Nxd5 30. Qf5 Nge7 31. Bd4+ f6 32. Qe6 Rd6 33. Bxf6+ Kg6 34. Qe5 Rxf6 35. Nxd5 Nxd5 36. Rxd5 Rxd5 37. Rxd5 Qc6 38. g4 Re6 39. Qf5+ Kg7 40. h4 gxh4 41. Kh3 Qc7 42. f4 Re3+ 43. Kxh4 Qe7+ 44. g5 hxg5+ 45. Qxg5+ Qxg5+ 46. Kxg5 Rg3+ 47. Kf5 Rg2 48. Rd7+ Kg8 49. Rxa7 Rxb2 50. Kg6 Rg2+ 51. Kf6 b5 52. f5 b4 53. Ra8+ Kh7 54. Ke6 Re2+ 55. Kf7 Re5 56. f6 Rb5 57. Ke8 Re5+ 58. Kf8 Kg6 59. f7 Rf5 60. Ra7 1-0