[Event "Interzonal-13c"]
[Site "Biel"]
[Date "1985.07.23"]
[Round "15"]
[White "Partos, Charles"]
[Black "Van der Wiel, John"]
[Result "1/2-1/2"]
[WhiteElo "2425"]
[BlackElo "2520"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 cxd4 6. exd4 O-O 7. a3 Be7 8. g3 d5 9. cxd5 Nxd5 10. Bg2 Nc6 11. Nxd5 exd5 12. Nf4 Bg5 13. O-O Bxf4 14. Bxf4 Be6 15. b4 Qb6 16. Bd6 Rfd8 17. Bc5 Qc7 18. b5 Na5 19. Re1 Nc4 20. Qb3 b6 21. Bb4 Qd7 22. Bc3 h6 23. Ra2 Nd6 24. a4 Rac8 25. Bb4 Nf5 26. Rd2 Rc4 27. Bc3 Rdc8 28. Bb2 Nd6 29. Bf1 Ne4 30. Rde2 Qd6 31. f3 Ng5 32. Re3 R4c7 33. Ba3 Qd7 34. Bb4 Rc1 35. Bd2 Rxe1 36. Rxe1 Bh3 37. Rc1 Re8 38. Qd3 Bxf1 39. Kxf1 Qh3+ 40. Kg1 Qh5 41. Bxg5 Qxg5 42. Rc7 g6 43. Kf2 Re7 44. Rxe7 Qxe7 45. Qc3 Kg7 46. Qe3 Qxe3+ 1/2-1/2