[Event "URS-ch45 Final"]
[Site "Leningrad"]
[Date "1977.12.03"]
[Round "4"]
[White "Polugaevsky, Lev"]
[Black "Gulko, Boris F"]
[Result "1/2-1/2"]
[WhiteElo "2620"]
[BlackElo "2585"]

1. Nf3 g6 2. d4 d6 3. e4 Nf6 4. Nbd2 Bg7 5. Bc4 O-O 6. Bb3 Nc6 7. c3 Bg4 8. h3 Bxf3 9. Qxf3 e5 10. d5 Ne7 11. Nc4 Nd7 12. g4 Nc5 13. Be3 b5 14. Na3 Nxb3 15. axb3 c6 16. dxc6 Nxc6 17. Nxb5 Qb8 18. Qe2 a6 19. Na3 Qxb3 20. Nc4 d5 21. exd5 Nd4 22. cxd4 exd4 23. Ra3 Qb5 24. Ra5 Qb3 25. Ra3 Qb5 26. Ra5 Qb3 27. Ra3 1/2-1/2