[Event "IBM-20 Kroongroep"]
[Site "Amsterdam"]
[Date "1980.06.??"]
[Round "?"]
[White "Van der Wiel, John"]
[Black "Timman, Jan H"]
[Result "1/2-1/2"]
[WhiteElo "2465"]
[BlackElo "2600"]
[ECO "C57"]
[Opening "Italian Game: Two Knights Defense, Knight Attack"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 6. c3 b5 7. Bf1 Nxd5 8. cxd4 Qxg5 9. Nc3 exd4 10. Bxb5+ Bd7 11. Bxd7+ Kxd7 12. O-O Nf4 13. g3 Nh3+ 14. Kg2 Nf4+ 15. Kh1 dxc3 16. Qa4+ c6 17. gxf4 Qd5+ 18. Kg1 cxb2 19. Bxb2 Bc5 20. Rae1 f6 21. Ba3 Rhe8 22. Bxc5 Qxc5 23. Re3 Rab8 24. Rc3 Rb4 25. Qc2 Qb5 26. Qxh7 Re7 27. Qh3+ f5 28. Rd3+ Kc7 29. Re3 Rbe4 30. Rxe4 Rxe4 31. Qg3 Qb2 32. d3 Re6 33. Qg5 g6 34. Qh4 Qxa2 35. Qh7+ Kd6 36. Qg7 Qa4 37. Ra1 Qxf4 38. Qf8+ Kc7 39. Qf7+ Kd6 40. Qf8+ Kc7 1/2-1/2