Donner, Jan Hein VS Kuijpers, Frans 1961.??.??

[Event "IBM"]
[Site "Amsterdam"]
[Date "1961.??.??"]
[Round "6"]
[White "Donner, Jan Hein"]
[Black "Kuijpers, Frans"]
[Result "1-0"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 d6 7. e3 Bxc3+ 8. bxc3 e5 9. f3 O-O 10. e4 Nbd7 11. Bd3 Re8 12. Bf2 Nf8 13. Be3 Ng6 14. Qd2 Nh5 15. Kf2 Qh4+ 16. Kf1 Ng3+ 17. hxg3 Qxh1 18. Kf2 Rf8 19. Rf1 Qh2 20. Ne2 Ne7 21. g4 Qh4+ 22. Ng3 Qf6 23. g5 Qg6 24. gxh6 f5 25. exf5 Nxf5 26. Bxf5 Bxf5 27. Rh1 Rf7 28. Rh4 Bb1 29. Qb2 Qc2+ 30. Qxc2 Bxc2 31. hxg7 Rxg7 32. Nh5 Rg6 33. g4 Kf7 34. f4 Bd1 35. Ng3 exf4 36. Bxf4 Bxg4 37. Ne4 Rag8 38. Nxd6+ Kf6 39. Nxb7 Kf5 40. Bc7 Rf8 41. Ke3 Ra6 42. Rh2 Ra3 43. Rf2+ 1-0