[Event "Interzonal-10a"]
[Site "Biel"]
[Date "1976.07.12"]
[Round "2"]
[White "Petrosian, Tigran V"]
[Black "Rogoff, Kenneth"]
[Result "1/2-1/2"]
[WhiteElo "2635"]
[BlackElo "2480"]

1. c4 Nf6 2. Nc3 e5 3. g3 Bb4 4. Nf3 Nc6 5. Bg2 O-O 6. O-O e4 7. Ne1 Bxc3 8. dxc3 h6 9. Nc2 d6 10. Ne3 Re8 11. Qc2 b6 12. Bd2 Ne5 13. Rad1 Neg4 14. h3 Nxe3 15. Bxe3 Qe7 16. Bd4 Bf5 17. Qc1 Qe6 18. g4 Bg6 19. b3 c5 1/2-1/2