[Event "IBM"]
[Site "Amsterdam"]
[Date "1974.08.03"]
[Round "15"]
[White "Csom, Istvan"]
[Black "Timman, Jan H"]
[Result "1/2-1/2"]

1. c4 g6 2. Nc3 Bg7 3. g3 Nf6 4. Bg2 O-O 5. d4 d6 6. Nf3 c6 7. O-O Qa5 8. h3 e5 9. e4 Be6 10. d5 cxd5 11. cxd5 Bd7 12. a3 b5 13. b4 Qc7 14. Bb2 a5 15. Nd2 Na6 16. Qb3 Bh6 17. Ncb1 Nh5 18. Kh2 f5 19. Bxe5 a4 20. Qa2 Qb6 21. Bc3 f4 22. g4 f3 23. Nxf3 Nf4 24. Bd4 Qd8 25. Nbd2 Ne2 26. Be3 Bg7 27. Rae1 Nf4 28. Bxf4 Rxf4 29. e5 Rc8 30. e6 Be8 31. Rc1 Bc3 32. Qc2 Rc7 33. Qd3 Bb2 34. Rxc7 Qxc7 35. Qe3 Rf8 36. Rb1 Qc2 37. Re1 Nc7 38. e7 Rf7 39. Ng5 Be5+ 40. Kh1 Bf4 41. Qe4 Qxd2 42. Nxf7 Kxf7 43. Re2 Qc1+ 44. Re1 Qd2 45. Re2 Qc1+ 46. Re1 Qc4 47. Qf3 g5 48. Kg1 Kg8 49. Rd1 Bg6 50. Bf1 Qb3 51. Rd3 Qb1 52. Rc3 Ne8 53. Qe2 Qa1 54. Rc8 Kf7 55. Qxb5 Kxe7 56. Qxa4 Qd4 57. Qb5 Be5 58. Qc4 Qa7 59. Qc1 Bf4 60. Qc3 Be5 61. Qc1 Bf4 62. Qc3 Be5 1/2-1/2