[Event "IBM"]
[Site "Amsterdam"]
[Date "1971.07.13"]
[Round "1"]
[White "Uhlmann, Wolfgang"]
[Black "Timman, Jan H"]
[Result "1-0"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qa4+ c6 6. cxd5 Nxd5 7. e4 Nb6 8. Qd1 Bg4 9. Be3 O-O 10. Be2 N8d7 11. a4 a5 12. Qb3 Be6 13. Qc2 Nc4 14. Bf4 Qb6 15. O-O Nd6 16. Be3 Bb3 17. Qc1 Nc4 18. Bh6 e5 19. d5 Rac8 20. Re1 Rfe8 21. h3 Nf6 22. dxc6 Rxc6 23. Bg5 Nd6 24. Qb1 Qb4 25. Bf1 Nd7 26. Bd2 Nc4 27. Nd5 Qc5 28. Bxc4 Bxc4 29. b4 Qd6 30. b5 Rc5 31. Be3 Bxd5 32. Rd1 Nb6 33. Qb3 Rcc8 34. Bxb6 Qxb6 35. Qxd5 Rc2 36. Rd2 Rxd2 37. Qxd2 Bf8 38. Qc2 Bc5 39. Rd1 Rc8 40. Nxe5 Qe6 41. Nd7 1-0