[Event "USA-ch"]
[Site "Greenville"]
[Date "1980.06.13"]
[Round "3"]
[White "Seirawan, Yasser"]
[Black "Biyiasas, Peter"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2485"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. d3 d6 6. Rb1 a5 7. a3 Nc6 8. b4 axb4 9. axb4 e5 10. Nf3 Re8 11. Nd2 Nd4 12. O-O c6 13. Bb2 d5 14. h3 h5 15. Kh1 Nf5 16. Ra1 Rxa1 17. Qxa1 Bh6 18. Bc1 Bg7 19. Qa7 Nd4 20. Bb2 dxc4 21. Nxc4 Nxe2 22. Nxe2 Qxd3 23. Nb6 Qxe2 24. Nxc8 Qxb2 25. Qxb7 e4 26. Nd6 Rf8 27. Nxe4 1/2-1/2