[Event "Interzonal-10a playoff place 2+3"]
[Site "Varese"]
[Date "1976.10.15"]
[Round "6"]
[White "Portisch, Lajos"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]
[WhiteElo "2625"]
[BlackElo "2635"]

1. d4 g6 2. e4 Bg7 3. c3 c6 4. Bd3 d6 5. f4 d5 6. e5 h5 7. Nf3 Nh6 8. Be3 Bf5 9. Bxf5 Nxf5 10. Bf2 Na6 11. Nbd2 Nc7 12. g3 Qd7 13. Qe2 Ne6 14. O-O-O O-O-O 15. Kb1 f6 16. Nb3 Bh6 17. Rhe1 Rde8 18. Qc2 b6 19. h3 Bg7 20. Nc1 Nc7 21. Nd3 Nh6 22. Rh1 Nf7 23. Be3 f5 24. Nh4 Rh6 25. Nf2 Reh8 26. Nf3 e6 27. Rhg1 Bf8 28. g4 hxg4 29. hxg4 Nd8 30. Qc1 c5 1/2-1/2