[Event "URS-ch45 Final"]
[Site "Leningrad"]
[Date "1977.12.16"]
[Round "12"]
[White "Petrosian, Tigran V"]
[Black "Tukmakov, Vladimir B"]
[Result "1/2-1/2"]
[WhiteElo "2645"]
[BlackElo "2540"]
1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bg5 d6 5. Nbd2 h6 6. Bxf6 Bxf6 7. Qc2 Bg7 8. e3 Nd7 9. Rd1 e5 10. Be2 Qe7 11. O-O O-O 12. Rfe1 f5 13. dxe5 dxe5 14. Nc4 e4 15. Nd4 Ne5 16. Rd2 Nf7 17. b4 b6 18. b5 a6 19. a4 axb5 20. axb5 1/2-1/2