[Event "USA-ch"]
[Site "Greenville"]
[Date "1980.06.11"]
[Round "1"]
[White "Christiansen, Larry Mark"]
[Black "Biyiasas, Peter"]
[Result "1-0"]
[WhiteElo "2485"]
[BlackElo "2485"]

1. g3 Nf6 2. Bg2 d5 3. Nf3 e6 4. O-O Be7 5. c4 O-O 6. d4 Nbd7 7. Qc2 c6 8. Nbd2 b5 9. b3 Ba6 10. Bb2 bxc4 11. bxc4 Rb8 12. Rab1 Bb4 13. Rfc1 Nb6 14. c5 Bxd2 15. Nxd2 Nc4 16. Nxc4 Bxc4 17. Bc3 Nd7 18. e4 Qc7 19. Bd2 Rxb1 20. Rxb1 Rb8 21. Re1 Rb5 22. h3 Nb8 23. a4 Rb7 24. Bf4 Qc8 25. Qc3 Qd8 26. Bd6 Rb3 27. Qd2 Na6 28. exd5 cxd5 29. Re3 Rb1+ 30. Re1 Rb3 31. Re3 Rb1+ 32. Re1 Rb4 33. Qf4 Qc8 34. Be5 Nb8 35. Qg5 Qf8 36. Bd6 h6 37. Qd2 1-0