[Event "IBM"]
[Site "Amsterdam"]
[Date "1973.??.??"]
[Round "4"]
[White "Ree, Hans"]
[Black "Timman, Jan H"]
[Result "0-1"]
1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3 6. Qxc3 d6 7. g3 e5 8. Bg2 Nc6 9. b4 Bg4 10. h3 Bh5 11. b5 Nb8 12. O-O Nbd7 13. Bb2 Re8 14. a4 a5 15. d4 e4 16. Nd2 Bxe2 17. Rfe1 Bd3 18. f3 d5 19. cxd5 Nxd5 20. Qb3 Nb4 21. fxe4 Bc2 22. Qc3 Nb6 23. Nb3 Bxb3 24. Qxb3 c6 25. Rf1 Qd7 26. Rf4 Qe6 27. Qc3 f6 28. bxc6 bxc6 29. Bf1 g5 30. d5 N6xd5 31. exd5 Nxd5 32. Rxf6 Nxc3 33. Rxe6 Rxe6 34. Bxc3 Re3 35. Bc4+ Kf8 36. Rf1+ Ke8 37. Bg7 Kd7 38. Kf2 Rae8 39. Rb1 h5 40. Rb7+ Kc8 41. Ba6 R3e4 42. Rf7+ Kb8 43. Bf6 Rxa4 44. Bxg5 Rb4 45. Bf4+ Ka8 46. Bd6 Rb2+ 47. Kf3 a4 48. Rf5 Rd8 49. Be5 a3 50. Rxh5 Rb3+ 51. Kf4 Rb4+ 52. Ke3 Ra4 53. Bd3 a2 54. Be4 Kb7 55. Rh8 Rd1 56. Rh7+ Kb6 57. Bd3 Re1+ 58. Be2 Rxe2+ 59. Kxe2 Re4+ 0-1