[Event "Olympiad-17 Preliminaries A"]
[Site "Havana"]
[Date "1966.10.28"]
[Round "3"]
[White "Weiss, Leon"]
[Black "Walther, Edgar"]
[Result "0-1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. d5 Nbd7 8. Bg5 h6 9. Bh4 g5 10. Bg3 Nh5 11. Qc2 f5 12. exf5 Nc5 13. f6 Qxf6 14. O-O Bf5 15. Qd1 Nf4 16. Bxf4 gxf4 17. Ne1 e4 18. Bg4 f3 19. gxf3 Bxg4 20. fxg4 Qh4 21. Ng2 Qh3 22. Ne3 Be5 0-1