[Event "Philadelphia op"]
[Site "Philadelphia"]
[Date "1987.??.??"]
[Round "?"]
[White "Gulko, Boris F"]
[Black "Wolff, Patrick G"]
[Result "1/2-1/2"]
[WhiteElo "2525"]
[BlackElo "2380"]

1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. d4 exd4 5. Qxd4 d5 6. Nf3 Be7 7. cxd5 cxd5 8. O-O O-O 9. Be3 Nc6 10. Qa4 Ng4 11. Bf4 Bc5 12. Qb5 Qe7 13. Nc3 Rd8 14. Rac1 h6 15. Na4 Bd6 16. Bxd6 Rxd6 17. e3 Bf5 18. Nc5 b6 19. Nb3 Nce5 20. Nxe5 Nxe5 21. Rc3 Bd3 22. Rxd3 a6 23. Qxd5 Rxd5 24. Rxd5 Rc8 25. Nd4 g6 1/2-1/2