[Event "Olympiad-20 Preliminaries A"]
[Site "Skopje"]
[Date "1972.09.22"]
[Round "4"]
[White "Estevez Morales, Guillermo"]
[Black "Gonzales, Eliseo"]
[Result "1/2-1/2"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. h3 Bf5 7. Bd3 Nd6 8. O-O Bxd3 9. Qxd3 Be7 10. Bf4 O-O 11. Nbd2 c6 12. Rfe1 Na6 13. Re2 Re8 14. Rae1 f6 15. Bxd6 Qxd6 16. Nh4 Qd7 17. Qb3 Kf7 18. c4 Bb4 19. cxd5 Qxd5 20. Qd3 Rxe2 21. Rxe2 Bxd2 22. Qxh7 Qg5 23. Nf3 Qh6 24. Qe4 Bb4 25. Qe6+ Kf8 26. a3 Qc1+ 27. Kh2 Nc7 28. Qd7 Qf4+ 29. Kh1 Qd6 30. Qf5 Qd5 31. Qxd5 Nxd5 32. axb4 Re8 33. Rd2 Nxb4 34. Nh4 Re1+ 35. Kh2 Rc1 36. Nf5 Rc2 37. Rxc2 Nxc2 38. Nd6 b5 39. Nc8 a5 40. d5 cxd5 41. Kg3 Ne1 42. Na7 Nd3 43. Nxb5 Nxb2 44. Nc7 a4 45. Nxd5 a3 46. Nc3 Ke7 47. Kf3 Kd6 48. Nb5+ Ke5 49. Nxa3 Nd3 50. g4 g5 51. Nc4+ Kd4 52. Ne3 Ne5+ 53. Kg3 Ng6 54. Nf5+ Ke4 55. Nd6+ Ke5 56. Nc4+ Kd4 57. Nb6 Ke5 58. Kf3 Nh4+ 59. Kg3 Ng6 60. Nc4+ Kd4 61. Ne3 Ke5 62. Ng2 Ke4 63. f3+ Ke5 64. f4+ Ke4 65. f5 Ne5 66. h4 gxh4+ 67. Nxh4 Nf7 68. Ng6 Nh6 69. Ne7 Nf7 70. Kh4 Kf4 71. Kh5 Nd6 72. Nd5+ Ke5 73. Kg6 Kxd5 74. Kxf6 Ne4+ 75. Kg6 Ke5 76. g5 Nd6 77. f6 Ke6 78. Kg7 Ne8+ 79. Kg6 Nd6 80. Kh7 Ne8 1/2-1/2