[Event "Olympiad-17 Preliminaries A"]
[Site "Havana"]
[Date "1966.10.30"]
[Round "5"]
[White "De Castro, Edgar"]
[Black "Walther, Edgar"]
[Result "0-1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 h6 6. Bf4 Nc6 7. Nf3 e5 8. dxe5 Nh5 9. Be3 dxe5 10. Qxd8+ Nxd8 11. Nd5 Ne6 12. O-O-O Nf6 13. Nxf6+ Bxf6 14. g3 b6 15. Bh3 Ke7 16. Rhe1 Bb7 17. Bxe6 Kxe6 18. Bd2 Rad8 19. Bc3 Rxd1+ 20. Kxd1 Bg7 21. Nd2 Rd8 22. f4 Bf6 23. Kc2 exf4 24. gxf4 Bh4 25. Re3 f5 26. Rh3 g5 27. exf5+ Kxf5 28. fxg5 Bxg5 29. Rd3 Rxd3 30. Kxd3 Bf4 31. Nf1 Be4+ 32. Ke2 Bb1 33. a3 h5 34. Kf3 Be4+ 35. Kf2 Bd3 36. Ng3+ Kg4 37. h3+ Kh4 38. Bf6+ Bg5 39. Bxg5+ Kxg5 40. c5 bxc5 41. Ke3 c4 42. Kf3 Kh4 43. Kg2 Bg6 44. Ne2 Be4+ 45. Kh2 c6 46. Ng1 Bd5 47. Ne2 a5 48. Ng1 Kg5 49. Kg3 h4+ 50. Kf2 Kf4 51. a4 Ke4 52. Ke2 Bf7 0-1