[Event "Olympiad-17 Preliminaries D"]
[Site "Havana"]
[Date "1966.10.26"]
[Round "1"]
[White "Mazzoni, Guy"]
[Black "Larsen, Bent"]
[Result "0-1"]

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 cxd4 5. Nxd4 Nc6 6. Be3 Nf6 7. Qd2 O-O 8. f3 d5 9. Rd1 Nxd4 10. Bxd4 dxe4 11. fxe4 Be6 12. Be2 Qa5 13. O-O Rfd8 14. Qe3 Ng4 15. Bxg4 Bxg4 16. Rd3 Rxd4 17. Rxd4 Bxd4 18. Qxd4 Be6 19. Rd1 Rc8 20. a3 f6 21. Rd2 Kf7 22. h3 Qg5 23. Kh1 Rc4 24. Qf2 b5 25. Qe2 a5 26. Rd1 Qe5 27. Re1 Qg3 28. Rf1 Rc5 29. Rf3 Qg5 30. Qd1 b4 31. axb4 axb4 32. Na4 Rc4 33. Qd3 Qc1+ 34. Qf1 Qxf1+ 35. Rxf1 Rxc2 0-1