[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1969.01.25"]
[Round "10"]
[White "Ree, Hans"]
[Black "Donner, Jan Hein"]
[Result "0-1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 a6 5. f3 b5 6. Qd2 c6 7. g4 h5 8. g5 Nfd7 9. f4 Nb6 10. b3 d5 11. f5 gxf5 12. e5 e6 13. Nce2 c5 14. c3 Nc6 15. a3 c4 16. b4 a5 17. Rb1 axb4 18. axb4 Ra3 19. Nh3 Bd7 20. Rg1 Ne7 21. Qd1 Ng6 22. Bd2 Na4 23. Qc2 Nb6 24. Bc1 Ra6 25. Nef4 Qa8 26. Be2 h4 27. Bh5 Rg8 28. Qd1 Kd8 29. Rg2 Kc7 30. Qf3 Be7 31. Bxg6 fxg6 32. Qf2 Na4 33. Bd2 Qe8 34. Qxh4 Rh8 35. Qf2 Qf7 36. Ng1 Nb6 37. Nf3 Ra2 38. h4 Na4 39. Ne2 Ra8 40. Qe3 Nb2 41. Nf4 R8a3 42. h5 Bxb4 43. Qg1 Bxc3 44. hxg6 Qg8 45. Qh2 Ra1 46. Rxa1 Rxa1+ 47. Ke2 Bxd2 48. Nxd2 Nd3 49. Nxd3 cxd3+ 50. Kxd3 Qxg6 51. Rg1 f4+ 52. Ke2 f3+ 53. Ke3 Ra2 54. Rc1+ Kb7 55. Qf4 0-1