[Event "Interzonal-07"]
[Site "Sousse"]
[Date "1967.11.08"]
[Round "18"]
[White "Kavalek, Lubomir"]
[Black "Portisch, Lajos"]
[Result "0-1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bd7 6. d4 Nf6 7. c3 Be7 8. Nbd2 O-O 9. Re1 Re8 10. Nf1 Bf8 11. Bg5 b5 12. Bc2 h6 13. Bxf6 Qxf6 14. Ne3 exd4 15. cxd4 g6 16. e5 dxe5 17. dxe5 Qd8 18. Nd5 Bg7 19. Nf6+ Bxf6 20. exf6 Rxe1+ 21. Nxe1 Be8 22. Qf3 Nd4 23. Qe4 Bc6 24. Qh4 Nxc2 25. Nxc2 Qd2 26. Ne3 Qxb2 27. Rd1 Re8 28. Nf5 Qd2 29. Nxh6+ Kf8 30. Rf1 Re1 31. Qg4 Rxf1+ 32. Kxf1 Qxh6 33. Qc8+ Be8 34. Qxc7 Kg8 35. Qc8 Qf8 36. Qxa6 Qc5 37. h4 Qc1+ 38. Ke2 Qc6 0-1