[Event "Interzonal-15"]
[Site "Manila"]
[Date "1990.??.??"]
[Round "4"]
[White "Ivanchuk, Vassily"]
[Black "De Firmian, Nick E"]
[Result "1-0"]
[WhiteElo "2680"]
[BlackElo "2560"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Na6 6. a3 Bxc3+ 7. Qxc3 Nxc5 8. b4 Nce4 9. Qd4 d5 10. c5 b6 11. f3 bxc5 12. bxc5 Qa5+ 13. Qb4 Qc7 14. fxe4 Rb8 15. Qa4+ Bd7 16. c6 O-O 17. Bd2 Bxc6 18. Qa5 Rb6 19. e3 Rfb8 20. Rc1 Nxe4 21. Nf3 Qe7 22. Bb4 Qb7 23. Bd3 Bb5 24. Bxe4 dxe4 25. Nd4 Bd3 26. Kf2 f6 27. Rhe1 h6 28. Kg1 Qf7 29. Nc6 Ra8 30. Ne7+ Kh7 31. Nc8 Rb5 32. Qc7 Qh5 33. Rc5 Rxc5 34. Bxc5 a5 35. Bf8 Qg5 36. Qb7 Ra6 37. Nd6 Qg6 38. Ne8 Kg8 39. Nc7 1-0