[Event "Candidates sf Petrosian-Kortschnoj+1-0"]
[Site "Moscow"]
[Date "1971.07.??"]
[Round "10"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]

1. c4 Nf6 2. d4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qa4+ Qd7 9. Qd1 Nc6 10. Nc3 Bb4 11. O-O Bxc3 12. bxc3 O-O 13. Re1 h6 14. e3 Rfe8 15. Bb2 Na5 16. Bf1 Nc4 17. Bxc4 Bxc4 18. Ne5 Qb5 19. Qc2 Rad8 20. a4 Qa6 21. a5 c5 22. Ba3 cxd4 23. cxd4 Bb5 24. Rec1 Nd7 25. Nf3 Bc6 26. Ne1 e5 27. Bb2 exd4 28. Bxd4 Ne5 29. Qc3 Qe2 30. Qb2 Qh5 31. h4 a6 32. Bxe5 Rxe5 33. Qb4 Rdd5 34. Ng2 Rb5 35. Qf4 Qf3 36. Qxf3 Bxf3 37. Rc8+ Kh7 38. Ne1 Bc6 39. Nd3 Rxa5 40. Rc1 Re7 1/2-1/2