[Event "Olympiad-17 Preliminaries A"]
[Site "Havana"]
[Date "1966.11.03"]
[Round "7"]
[White "De Castro, Edgar"]
[Black "Nilsson, Zandor"]
[Result "0-1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nbd7 7. Qd2 c5 8. d5 Re8 9. Bd3 a6 10. Nge2 Ne5 11. h3 e6 12. O-O exd5 13. cxd5 b5 14. Ng3 b4 15. Nd1 Nxd3 16. Qxd3 a5 17. Qd2 Nd7 18. Bg5 Qb6 19. Kh2 Ba6 20. Re1 Ne5 21. Bh6 Bh8 22. Ne3 c4 23. Rac1 Rac8 24. Nef5 Nd3 25. Be3 Qd8 26. Nh6+ Kf8 27. Ng4 Bxb2 28. Bg5 f6 29. Bxf6 Bxf6 30. Qh6+ Kg8 31. Nh5 Bh8 32. e5 dxe5 0-1