[Event "Olympiad-17 Preliminaries A"]
[Site "Havana"]
[Date "1966.11.03"]
[Round "7"]
[White "Sin, Kuen"]
[Black "Weiss, Leon"]
[Result "1-0"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. c3 b5 7. Bc2 O-O 8. h3 d6 9. d4 Re8 10. Re1 g6 11. Bh6 Nh5 12. Qd2 Ng7 13. a4 Bb7 14. axb5 axb5 15. Na3 Ba6 16. Bb3 Na5 17. Ba2 Bf6 18. dxe5 dxe5 19. b4 Nb7 20. Bd5 Rb8 21. Bc6 Qxd2 22. Bxd2 Red8 23. Nxb5 Bxb5 24. Bxb5 c5 25. Bc6 cxb4 26. cxb4 Ne6 27. Ra7 Nd6 28. Bd5 Nb5 29. Ra6 Ned4 30. Rxf6 Nxf3+ 31. gxf3 1-0