Sosonko, Gennadi VS De Firmian, Nick E 1985.05.08

[Event "Interzonal-13a"]
[Site "Tunis"]
[Date "1985.05.08"]
[Round "9"]
[White "Sosonko, Gennadi"]
[Black "De Firmian, Nick E"]
[Result "1/2-1/2"]
[WhiteElo "2535"]
[BlackElo "2540"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. g3 Bg7 8. Bg2 O-O 9. O-O Nbd7 10. Re1 a6 11. a4 Rb8 12. e4 b5 13. axb5 axb5 14. Bf1 b4 15. Nb5 Rb6 16. Bf4 Ne8 17. Qc2 Bb7 18. Ra7 Qb8 19. Rea1 h6 20. R1a5 g5 21. Be3 Nef6 22. h3 Re8 23. Nd2 Bf8 24. b3 Ne5 25. Ra1 1/2-1/2