[Event "USA-ch/Zonal"]
[Site "South Bend"]
[Date "1981.??.??"]
[Round "15"]
[White "Christiansen, Larry Mark"]
[Black "Kavalek, Lubomir"]
[Result "1/2-1/2"]
[WhiteElo "2515"]
[BlackElo "2550"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nb6 7. O-O Be7 8. d3 O-O 9. a3 Be6 10. b4 f6 11. Ne4 Qd7 12. Qc2 a6 13. Rb1 Rab8 14. Be3 Nd5 15. Bc5 Bd6 16. Rfd1 b6 17. Bxd6 cxd6 18. d4 Nce7 19. dxe5 dxe5 20. Rbc1 Rfc8 21. Qb2 Rxc1 22. Rxc1 Rc8 23. e3 Rxc1+ 24. Qxc1 Nc7 25. Nc3 Ned5 26. Nxd5 Bxd5 27. Nd2 Bxg2 28. Kxg2 Ne6 29. Qc4 b5 30. Qc2 Ng5 31. h4 Nf7 1/2-1/2