[Event "Olympiad-21 Preliminaries A"]
[Site "Nice"]
[Date "1974.06.10"]
[Round "4"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Myagmarsuren, Lhamsuren"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 Nf6 3. Nc3 d5 4. exd5 Nxd5 5. Bc4 e6 6. O-O Be7 7. d4 Nxc3 8. bxc3 O-O 9. Ne5 Nd7 10. f4 Qc7 11. Bd3 f6 12. Qh5 f5 13. Be3 Nxe5 14. fxe5 Bd7 15. Qe2 a6 16. g4 g6 17. Bh6 Rf7 18. d5 c4 19. Bxc4 exd5 20. Bd3 Qc6 21. h3 Re8 22. gxf5 gxf5 23. Bf4 Qxc3 24. Kh2 Bf6 25. Qg2+ Rg7 26. Qxd5+ Be6 27. Qf3 Bxe5 28. Rae1 Bf7 29. Bxe5 Rxe5 30. Rxe5 Qxe5+ 31. Qf4 Qxf4+ 32. Rxf4 Bd5 33. h4 Bxa2 34. Rxf5 Rg4 35. Rh5 Rg7 36. Rc5 Be6 37. Be4 Re7 38. Kg3 Kg7 39. Kf4 Kf6 40. Rh5 Bf7 41. Rh6+ Bg6 42. Bxg6 hxg6 43. h5 Rg7 44. hxg6 Rxg6 45. Rh7 Rg7 46. Rh6+ Ke7 47. Ke4 Kd8 48. Kd4 Rg5 49. c4 Rg3 50. Rb6 Kc7 51. c5 a5 52. Rb5 a4 53. Ra5 Kc6 54. Kc4 Rg1 55. Kc3 Rb1 56. Rxa4 Kxc5 57. Rh4 Kb5 58. Rg4 Ka5 59. Rh4 b6 60. Rg4 Rh1 61. Kb3 Rh3+ 62. Kb2 b5 63. Rf4 1/2-1/2