[Event "Zuerich"]
[Site "Zuerich"]
[Date "1961.05.31"]
[Round "4"]
[White "Kupper, Josef"]
[Black "Walther, Edgar"]
[Result "1-0"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 b5 8. e5 dxe5 9. fxe5 Qc7 10. Qe2 Nfd7 11. O-O-O Be7 12. Bxe7 Kxe7 13. Qg4 Qxe5 14. Bxb5 Bb7 15. Rhe1 h5 16. Nf5+ Kd8 17. Qh4+ g5 18. Qxg5+ f6 19. Bxd7 fxg5 20. Bxe6+ 1-0