[Event "Interzonal-13c"]
[Site "Biel"]
[Date "1985.07.15"]
[Round "10"]
[White "Quinteros, Miguel Angel"]
[Black "Petursson, Margeir"]
[Result "1-0"]
[WhiteElo "2525"]
[BlackElo "2550"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. Qc2 c5 7. cxd5 exd5 8. dxc5 Na6 9. O-O Nxc5 10. Nc3 Be6 11. Be3 Rc8 12. Bd4 Nce4 13. Qb3 Bc5 14. Qxb7 Rb8 15. Qa6 Bc8 16. Qd3 Re8 17. Bxc5 Nxc5 18. Qc2 Nce4 19. Rad1 Nxc3 20. bxc3 Qa5 21. Rb1 Bd7 22. Rxb8 Rxb8 23. Nd4 Qa3 24. Rb1 Rxb1+ 25. Qxb1 Qxc3 26. Qb8+ Ne8 27. Bh3 Qa1+ 28. Kg2 Qxd4 29. Bxd7 Qe4+ 30. Kh3 Kf8 31. Qxa7 Nd6 32. Qc7 Ne8 33. Qc5+ Kg8 34. Qc8 1-0