[Event "IBM"]
[Site "Amsterdam"]
[Date "1972.??.??"]
[Round "?"]
[White "Ivkov, Borislav"]
[Black "Robatsch, Karl"]
[Result "1/2-1/2"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 4. cxd5 Nxd5 5. e3 Nxc3 6. bxc3 g6 7. Be2 Bg7 8. O-O O-O 9. d4 Nd7 10. Bb2 cxd4 11. cxd4 Nb6 12. a4 Be6 13. a5 Nc4 14. Bc3 Rc8 15. Bb4 Nd6 16. Rb1 Qc7 17. Bd3 b6 18. axb6 axb6 19. Qe2 Ra8 20. Rfc1 Qb7 21. Nd2 Rfc8 22. Rxc8+ Nxc8 23. Be4 Bd5 24. Bxd5 Qxd5 25. Qf3 Qxf3 26. gxf3 Kf8 27. Rc1 Ke8 28. Ne4 Kd7 29. Nc3 Ra7 30. Nb5 Rb7 31. f4 Na7 32. Nxa7 Rxa7 33. Kg2 e6 34. Kf3 Bf6 35. Rb1 Bd8 36. Rb2 f5 37. Ke2 Ra1 38. Kd3 Rd1+ 39. Rd2 Rh1 40. f3 Rf1 41. Ra2 Rxf3 42. Be1 Rh3 43. Bg3 Bc7 44. Ra8 b5 45. Ra6 g5 46. d5 exd5 47. Kd4 gxf4 48. Bxf4 Bxf4 49. exf4 Rxh2 50. Kxd5 Kc7 51. Kc5 h5 52. Ra7+ Kb8 53. Rh7 h4 54. Kxb5 h3 55. Kb6 Kc8 56. Kc6 Kd8 57. Kd6 1/2-1/2