[Event "NED-ch26"]
[Site "Leeuwarden"]
[Date "1971.04.14"]
[Round "9"]
[White "Hartoch, Robert G"]
[Black "Timman, Jan H"]
[Result "0-1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bf4 O-O 6. Rc1 dxc4 7. e3 Be6 8. Ng5 Bd5 9. e4 h6 10. exd5 hxg5 11. Bxg5 Nxd5 12. Bxc4 Nb6 13. Bb3 Nc6 14. Ne2 a5 15. O-O a4 16. Bc4 Nxc4 17. Rxc4 Qd5 18. Qc1 e5 19. dxe5 Qxe5 20. Nc3 a3 21. b3 Na5 22. Bf4 Qf5 23. Rxc7 Nc6 24. Bg3 Qd3 25. Na4 Nd4 26. Nc3 Rfc8 27. Qe3 Qa6 28. Be5 Nf5 29. Rxc8+ Rxc8 30. Qf4 Rxc3 31. Bxc3 Bxc3 32. g4 Nd4 33. Kg2 Qe2 34. Rc1 Qd2 35. Qb8+ Kh7 36. Qc7 Qxc1 37. Qxf7+ Kh6 38. h4 Ne2 39. g5+ Kh5 40. Qf3+ Kxh4 41. Qxe2 Qxg5+ 42. Kf1 Qc1+ 43. Kg2 Qf4 44. Kh1 Be5 45. f3 Qc1+ 0-1