[Event "Olympiad-17 Preliminaries B"]
[Site "Havana"]
[Date "1966.10.26"]
[Round "1"]
[White "Myagmarsuren, Lhamsuren"]
[Black "Iglesias, Alfredo"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O a6 9. f4 Bd7 10. Nf3 Qc7 11. e5 dxe5 12. fxe5 Ng8 13. Ne4 f6 14. Bf4 f5 15. Nd6+ Bxd6 16. Qxd6 Qxd6 17. Rxd6 Nge7 18. Bc4 Nc8 19. Rd2 Nb6 20. Rhd1 h6 21. Bb3 Na5 22. Kb1 Nxb3 23. axb3 O-O-O 24. c4 Bc6 25. Nd4 Be4+ 26. Ka2 Rhe8 27. h4 Rd7 28. Be3 Na8 29. b4 Nc7 30. g3 Rg8 31. Nb3 Rxd2 32. Rxd2 b5 33. Nc5 bxc4 34. Nxe4 fxe4 35. Rd4 c3 36. bxc3 Nd5 37. Bd2 e3 38. Be1 Rf8 39. c4 Rf2+ 40. Kb3 Rf1 41. cxd5 Rxe1 42. dxe6 e2 43. e7 Rb1+ 44. Ka2 Ra1+ 45. Kb2 Rb1+ 46. Kc2 Rc1+ 47. Kd3 e1=Q 48. e8=Q+ Kb7 49. Rd7+ Rc7 50. Rxc7+ Kxc7 51. Qe7+ Kc6 52. Qe8+ Kc7 53. Qe7+ Kc6 54. Qc5+ Kd7 55. Qd6+ Ke8 56. Qc6+ Ke7 57. Qb7+ Kf8 58. Qc8+ Ke7 59. Qc7+ Kf8 60. Qd6+ Ke8 61. Kd4 Qxg3 62. Kc5 Qxh4 63. Kb6 Qc4 64. e6 Qc8 65. Qd5 g5 66. Qe5 Ke7 67. Qg7+ Kxe6 68. Qxh6+ Kf5 69. Qh7+ Kf4 70. Qh2+ Kg4 71. Qe2+ Kh4 72. Qh2+ 1/2-1/2