[Event "Olympiad-17 Preliminaries A"]
[Site "Havana"]
[Date "1966.10.26"]
[Round "1"]
[White "Weiss, Leon"]
[Black "De Castro, Edgar"]
[Result "1-0"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Na6 11. Re1 Nc7 12. h3 Rb8 13. a4 b6 14. Bd3 a6 15. Bd2 Bd7 16. Qc2 b5 17. axb5 axb5 18. b3 Rxe1+ 19. Rxe1 bxc4 20. bxc4 Na6 21. Qc1 Nb4 22. Bb1 Qc8 23. Ng5 h6 24. Nge4 Ne8 25. Ng3 f5 26. Re2 Nf6 27. Qd1 Qa6 28. Qf1 Re8 29. Rxe8+ Bxe8 30. Kh2 h5 31. Qe2 Bf7 32. Nb5 Qa1 33. Qe1 h4 34. Ne2 Qa6 35. Bxb4 cxb4 36. Qxb4 Ne8 37. Bd3 Qb6 38. Qd2 Qf2 39. Nbc3 Nf6 40. Nd1 Qc5 41. Qe3 Qa3 42. Nf2 Qa1 43. Qc1 Qa7 44. Nh1 Nh5 45. g3 hxg3+ 46. Nexg3 Nxg3 47. Kxg3 Qd4 48. Nf2 Bf6 49. Kf3 Bh4 50. Qe3 Qa1 51. Kg2 Bf6 52. Bf1 Bd4 53. Qe2 Qc3 54. Qf3 Qd2 55. Be2 Qe1 56. Bf1 Qd2 57. h4 Be3 58. Kg3 g5 59. Nd3 gxf4+ 60. Nxf4 Qd4 61. Ng2 Qe5+ 62. Kh3 Bh6 63. Qg3+ Kf8 64. Qxe5 dxe5 65. Kg3 Ke7 66. Kf2 Kd6 67. Ne3 Bg6 68. h5 Bh7 69. Bh3 Bxe3+ 70. Kxe3 Kc5 71. Bf1 Kd6 72. Kf3 1-0