[Event "Candidates qf Kortschnoj-Petrosian +2-1"]
[Site "Ciocco"]
[Date "1977.??.??"]
[Round "7"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]
[WhiteElo "2645"]
[BlackElo "2645"]

1. c4 e6 2. Nc3 d5 3. d4 Be7 4. Nf3 Nf6 5. Bg5 O-O 6. e3 Nbd7 7. Qc2 h6 8. Bh4 c5 9. Rd1 cxd4 10. Nxd4 Nb6 11. Be2 Bd7 12. cxd5 Nfxd5 13. Bxe7 Qxe7 14. Nxd5 Nxd5 15. O-O Rac8 16. Qb3 Rc7 17. Bf3 Nf6 18. Nb5 Bxb5 19. Qxb5 b6 20. Rd2 Rfc8 21. Rfd1 g6 22. g3 Kg7 23. a3 Rc5 24. Qd3 Rc1 25. Bg2 1/2-1/2