[Event "URS-ch52 Final + Zonal"]
[Site "Riga"]
[Date "1985.01.27"]
[Round "4"]
[White "Petrosian, Arshak B"]
[Black "Gulko, Boris F"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2475"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Nc6 8. Be2 Bg4 9. d5 Bxf3 10. gxf3 Ne5 11. Qb3 c6 12. f4 Ned7 13. Be3 cxd5 14. e5 Ne4 15. Nxe4 dxe4 16. Qxb7 Nb6 17. Qxe4 e6 18. Bc5 Qh4 19. Bxf8 Bxf8 20. O-O-O Rb8 21. Kb1 1/2-1/2