[Event "Capablanca Memorial-10"]
[Site "Cienfuegos"]
[Date "1973.03.11"]
[Round "17"]
[White "De Greif, Boris"]
[Black "Donner, Jan Hein"]
[Result "0-1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. h4 Nc6 6. Be3 h5 7. Qd2 e5 8. d5 Nd4 9. f3 c5 10. Nd1 Bd7 11. c3 Nxe2 12. Nxe2 Ng8 13. Nf2 f5 14. Bg5 Bf6 15. O-O-O f4 16. Bxf6 Qxf6 17. Rdg1 Nh6 18. Nh3 Nf7 19. g3 fxg3 20. Ng5 Nxg5 21. Qxg5 Qxg5+ 22. hxg5 h4 23. Nxg3 Ke7 24. Nf1 Raf8 25. Nh2 Rh5 26. Kd2 b5 27. Ke3 a5 28. Ng4 Rxg5 29. Rxh4 Rh5 30. Rxh5 gxh5 31. Nh2 Kf6 32. f4 exf4+ 33. Kxf4 Ke7+ 34. Ke3 Kf6 35. Kf4 Rh8 36. Rg5 h4 37. e5+ dxe5+ 38. Rxe5 h3 39. Re1 Rh4+ 40. Kg3 Rh5 41. Ng4+ Bxg4 42. Kxg4 Rh8 43. Kg3 Rh5 44. a4 h2 45. Rh1 Ke5 46. Rxh2 Rxh2 47. Kxh2 Kxd5 48. axb5 c4 49. Kg3 Kc5 50. Kf4 Kxb5 51. Ke3 Ka4 52. Kd2 Kb3 53. Kc1 a4 54. Kb1 a3 55. bxa3 Kxa3 0-1