[Event "Noordwijk"]
[Site "Noordwijk"]
[Date "1965.??.??"]
[Round "4"]
[White "Botvinnik, Mikhail"]
[Black "Donner, Jan Hein"]
[Result "1-0"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. e3 c5 5. cxd5 exd5 6. d4 Nc6 7. Be2 cxd4 8. Nxd4 Bd6 9.
O-O O-O 10. b3 a6 11. Bb2 Re8 12. Rc1 Bd7 13. Bf3 Nxd4 14. Qxd4 Be5 15. Qd2 Bg4 16. Rfd1
Bxf3 17. gxf3 Qd7 18. Kg2 Qf5 19. Ne2 Bxb2 20. Qxb2 Rac8 21. Nd4 Qe5 22. Rc2 Nd7 23. Rdc1
Rb8 24. Qc3 Nf8 25. Qc7 Qf6 26. Qg3 Ne6 27. Nxe6 fxe6 28. Rc7 Red8 29. h4 e5 30. R1c5 h6
31. h5 Rd6 32. Qg4 d4 33. exd4 Rxd4 34. Qg3 Rf4 35. Rc4 Rf8 36. Rxf4 exf4 37. Qg4 b6 38.
Rb7 Rf7 39. Rxf7 Kxf7 40. Qd7+ Kg8 41. Qc8+ Kh7 42. Qxa6 Qg5+ 43. Kf1 Qxh5 44. Qd3+ Kg8
45. a4 Qh1+ 46. Ke2 h5 47. Qd5+ Kh7 48. Qd1 Qh2 49. b4 h4 50. Qf1 g5 51. a5 bxa5 52. bxa5
g4 53. a6 1-0