[Event "URS-ch52 Final + Zonal"]
[Site "Riga"]
[Date "1985.02.15"]
[Round "17"]
[White "Petrosian, Arshak B"]
[Black "Sokolov, Andrei"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2550"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Ba6 5. Qc2 Bb7 6. Nc3 c5 7. e4 cxd4 8. Nxd4 d6 9. Bg5 a6 10. Rd1 Nbd7 11. f4 Be7 12. f5 O-O 13. fxe6 Nc5 14. Nf5 fxe6 15. Nxe7+ Qxe7 16. b4 Ncd7 17. Be2 Ne5 18. O-O Rac8 19. Rd4 h6 20. Bh4 b5 21. Qd2 bxc4 22. Rxd6 Nd3 23. e5 Nxe5 24. Qd4 Nc6 25. Qc5 Nd8 26. Qb6 Bc6 27. Rfd1 Qb7 28. Qxb7 Bxb7 29. R1d4 g5 30. Be1 Nd5 31. Rxc4 Rxc4 32. Bxc4 1/2-1/2