[Event "IBM"]
[Site "Amsterdam"]
[Date "1973.??.??"]
[Round "7"]
[White "Szabo, Laszlo"]
[Black "Donner, Jan Hein"]
[Result "1-0"]

1. c4 Nf6 2. Nc3 c5 3. Nf3 d5 4. cxd5 Nxd5 5. e3 e6 6. d4 Nc6 7. Bd3 Be7 8. O-O O-O 9. Qe2 b6 10. Rd1 Bb7 11. dxc5 Bxc5 12. Nxd5 exd5 13. Bd2 Qe7 14. Bc3 Rfe8 15. Ba6 Rad8 16. Bxb7 Qxb7 17. Qc2 f6 18. Qb3 Qf7 19. Rd3 Rd7 20. Rad1 Red8 21. Qa4 Qe6 22. b4 Bd6 23. Qb3 Ne7 24. Nd4 Qf7 25. Qa4 Be5 26. Nf3 Bxc3 27. Rxc3 Qe6 28. Nd4 Qe5 29. Rdc1 h5 30. h3 Rb7 31. b5 Rbd7 32. Qd1 g6 33. R1c2 Re8 34. Qd3 Kf7 35. Rc1 Red8 36. Qc2 Re8 37. Qb3 Red8 38. a4 Re8 39. Qa2 Rb8 40. R3c2 Kg7 41. Qa3 Kf7 42. a5 bxa5 43. Nc6 Nxc6 44. bxc6 Rc7 45. Qxa5 Rb6 46. Rc5 Qb2 47. Rd1 Qb4 48. Qxb4 Rxb4 49. Rcxd5 Rxc6 50. Rd7+ Ke6 51. Rxa7 Rb2 52. h4 Rcc2 53. Ra6+ Ke7 54. Rf1 Kf7 55. g3 Ke7 56. Ra7+ Ke6 57. Rg7 Kf5 58. e4+ Kxe4 59. Rxg6 Rc6 60. Re1+ Kd4 61. Re3 Rb5 62. Rf3 Ke5 63. Rh6 Rbb6 64. Rxh5+ Ke6 1-0