[Event "USA-ch"]
[Site "Greenville"]
[Date "1983.??.??"]
[Round "13"]
[White "Christiansen, Larry Mark"]
[Black "De Firmian, Nick E"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2475"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3 Bxc3+ 7. bxc3 d5 8. Ba3 Bxc4 9. Bxc4 dxc4 10. O-O Qd5 11. e4 Qb5 12. Qf3 Nbd7 13. Rfb1 Qa6 14. Bc1 O-O 15. a4 c5 16. Ba3 Rfc8 17. e5 Nd5 18. Ne4 cxd4 19. cxd4 Nf8 20. Rc1 Rc7 21. h4 Rd8 22. h5 h6 23. Bd6 Rc6 24. Ra3 Nh7 25. Qe2 f5 26. Nc3 Nxc3 27. Raxc3 Rdc8 28. f4 Qxa4 29. Ra3 Qb5 30. Rxa7 Qd5 31. Qe3 Kh8 32. Rc3 b5 33. Bc5 Nf8 34. Kh2 Nd7 35. Qg3 Rg8 36. Qg6 Nxc5 37. Rg3 Nd7 38. Ra8 Nb8 39. Rxb8 Rc7 40. Rxg8+ Kxg8 41. Qe8+ Kh7 42. Qg6+ 1/2-1/2