[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "4"]
[White "McCambridge, Vincent"]
[Black "Kavalek, Lubomir"]
[Result "1/2-1/2"]
[WhiteElo "2465"]
[BlackElo "2555"]

1. d4 d6 2. c4 e5 3. Nf3 e4 4. Nfd2 f5 5. Nc3 Nf6 6. e3 g6 7. f3 Bh6 8. fxe4 Bxe3 9. exf5 Qe7 10. Be2 Bxf5 11. Nf3 O-O 12. Bxe3 Qxe3 13. Qd2 Qxd2+ 14. Kxd2 Nc6 15. d5 Ne7 16. Rhf1 c6 17. Rae1 cxd5 18. cxd5 Bd7 19. Nd4 Rf7 20. Bc4 Nf5 21. Ne6 Rc8 22. Bb3 Re7 23. Rf4 Bxe6 24. dxe6 h5 25. h3 h4 26. Nb5 d5 27. Bc2 Rc5 28. Nd6 Nxd6 29. Rxf6 g5 30. Rg6+ Rg7 31. Rf6 Re7 32. Rg6+ Rg7 33. Rf6 1/2-1/2