[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1971.01.26"]
[Round "12"]
[White "Donner, Jan Hein"]
[Black "Kortschnoj, Viktor Lvovich"]
[Result "0-1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. e4 Nb6 7. Ne2 Bg4 8. Nbc3 Nc6 9. d5
Nd4 10. h3 Bf3 11. Bxf3 Nxf3+ 12. Kf1 c6 13. Kg2 Ne5 14. f4 Ned7 15. dxc6 bxc6 16. Qc2 O-O
17. Be3 Qc7 18. Rad1 Qb7 19. g4 c5 20. Kh2 Rac8 21. b3 Rfe8 22. Ng3 Bd4 23. Qd2 e5 24. f5
Qc6 25. Rhe1 a5 26. Rc1 a4 27. Qf2 axb3 28. axb3 Ra8 29. Rf1 Kh8 30. Qf3 Ra3 31. Nce2 Qf6
32. fxg6 Qxf3 33. g7+ Kg8 34. Rxf3 Rxb3 35. Nf5 Bxe3 36. Nxe3 Rb2 37. Rf2 Kxg7 38. Nf5+
Kf8 39. Rcf1 Re6 40. g5 Nc4 41. Nh6 Ke8 42. Ng3 Reb6 43. Rxb2 Rxb2+ 44. Kh1 Nd6 45. Rd1
Rb6 46. Kg2 c4 47. Nhf5 Nxf5 48. Nxf5 c3 49. Nd6+ Kd8 50. Nc4 Rb4 51. Nxe5 c2 52. Nxf7+
Ke7 53. Rc1 Rb2 0-1