[Event "Interzonal-08"]
[Site "Palma de Mallorca"]
[Date "1970.12.02"]
[Round "17"]
[White "Panno, Oscar"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O Re8 7. d3 Bxc3 8. bxc3 e4 9. Ng5 exd3 10. exd3 h6 11. Ne4 d6 12. f4 Nxe4 13. Bxe4 f5 14. Bd5+ Kh8 15. Qh5 Bd7 16. Bd2 Rb8 17. Rfe1 Qf6 18. Qf7 Qxf7 19. Bxf7 Rf8 20. Bd5 Rbe8 21. Kf2 Na5 22. Bf3 g6 23. c5 dxc5 24. c4 Nc6 25. Bc3+ Kh7 26. Rxe8 Rxe8 27. Bxc6 Bxc6 28. Re1 Kg8 29. Rxe8+ Bxe8 30. Be5 1/2-1/2