[Event "Costa del Sol-12"]
[Site "Malaga"]
[Date "1972.02.09"]
[Round "7"]
[White "Schaufelberger, Heinz"]
[Black "Martz, William E"]
[Result "0-1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5 Ne4 5. Bh4 c5 6. Nf3 Nc6 7. cxd5 Nxc3 8. bxc3 Qxd5 9. e3 cxd4 10. cxd4 Bg7 11. Be2 O-O 12. O-O b6 13. Qa4 Bb7 14. Rfd1 e6 15. Rac1 Rfc8 16. Ne1 Qa5 17. Bb5 Qxa4 18. Bxa4 Nb4 19. Bd7 Rxc1 20. Rxc1 Nxa2 21. Rc7 Bd5 22. f3 Nb4 23. Kf1 a5 24. Ke2 Bf8 25. e4 Bd6 26. Rc1 Bb3 27. Bf6 a4 28. d5 exd5 29. e5 Bc5 0-1