[Event "Interzonal-15"]
[Site "Manila"]
[Date "1990.??.??"]
[Round "9"]
[White "De Firmian, Nick E"]
[Black "Yudasin, Leonid"]
[Result "1-0"]
[WhiteElo "2560"]
[BlackElo "2615"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e6 7. Qf3 Qb6 8. a3 g6 9. Be2 Bg7 10. Be3 Qc7 11. O-O-O O-O 12. g4 Nc6 13. f5 Nd7 14. Rhf1 Nce5 15. Qg3 Re8 16. Qh4 b5 17. Bh6 Bh8 18. fxe6 fxe6 19. Nxe6 Qb7 20. Nd5 Nf6 21. Nec7 Bxg4 22. Nxe8 Bxe2 23. Nexf6+ Bxf6 24. Qxf6 1-0