[Event "IBM"]
[Site "Amsterdam"]
[Date "1971.07.13"]
[Round "1"]
[White "Donner, Jan Hein"]
[Black "Scholl, Eddie C"]
[Result "0-1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 c5 9. O-O Nc6 10. Be3 Na5 11. Bd3 b6 12. Rc1 cxd4 13. cxd4 e6 14. e5 Bb7 15. Nc3 Rc8 16. Qe2 Qd7 17. Rfd1 Rc7 18. Nb5 Rxc1 19. Rxc1 Rc8 20. Rxc8+ Qxc8 21. Nd6 Qc3 22. h4 Qa1+ 23. Qf1 Qxf1+ 24. Kxf1 Bd5 25. a4 Nc6 26. f3 f6 27. Ne8 fxe5 28. Nxg7 Kxg7 29. dxe5 Kf7 30. f4 Nb4 31. Bb5 Bc6 32. Bxc6 Nxc6 33. Ke2 Ke7 34. Kd3 Kd7 35. Kc4 Ne7 36. g3 Kc6 37. Bg1 h5 38. Be3 a6 39. Bf2 Nf5 40. Be1 Ne3+ 41. Kd3 Nd5 42. Kc4 b5+ 43. axb5+ axb5+ 44. Kb3 Nc7 45. Kb4 Nd5+ 46. Kb3 Nc7 47. Kb4 Na6+ 48. Ka5 Nc5 49. Bb4 Ne4 50. Be1 Kc5 51. Bb4+ Kc4 52. Be1 0-1