[Event "NED-ch27"]
[Site "Leeuwarden"]
[Date "1972.04.06"]
[Round "10"]
[White "Timman, Jan H"]
[Black "Van den Berg, Ad"]
[Result "1-0"]

1. c4 e5 2. Nc3 f5 3. d4 exd4 4. Qxd4 Nf6 5. Nd5 Nc6 6. Nxf6+ Qxf6 7. Qxf6 gxf6 8. Bd2 Nb4 9. Kd1 a5 10. Nh3 Bd6 11. e3 b6 12. Bc3 Be5 13. Kd2 Bb7 14. Nf4 O-O 15. f3 Bxf4 16. exf4 d5 17. a3 Na6 18. Kc2 Nc5 19. Rd1 Bc6 20. b3 dxc4 21. Bxc4+ Kg7 22. Bd4 Nb7 23. Be6 a4 24. b4 Nd6 25. Rhe1 Rfe8 26. Kb2 Rad8 27. Bc3 Bb5 28. g4 fxg4 29. fxg4 Nc4+ 30. Bxc4 Bxc4 31. Rxd8 Rxd8 32. Re7+ Bf7 33. g5 Kf8 34. gxf6 c5 35. b5 Re8 36. Rb7 Re2+ 37. Kc1 Bg6 38. Be5 Re3 39. Bd6+ Kg8 40. Rg7+ Kh8 41. Be5 1-0