[Event "WIO (Open)"] [Site "Boise, ID"] [Date "2011.12.10"] [Round "2.5"] [White "Hamilton, Brett B"] [Black "Ong, Chong-Jin"] [Result "0-1"] [WhiteElo "1904"] [BlackElo "1695"] [ECO "A57"] [Opening "Benko Gambit: 4.cxb5 a6"] 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 axb5 6. Bg5 b4 7. Bxf6 gxf6 8. Ne4 d6 9. e3 Qa5 10. Nd2 Bg7 11. a4 O-O 12. Nc4 Qc7 13. Bd3 Nd7 14. Qh5 h6 15. Bf5 Nb6 16. Nxb6 Qxb6 17. Nf3 Bxf5 18. Qxf5 Qa6 19. Qc2 Rfc8 20. b3 c4 21. O-O cxb3 22. Qxb3 f5 23. Rac1 Rxc1 24. Rxc1 Qxa4 25. Qxa4 Rxa4 26. Nd4 Bxd4 27. exd4 b3 {#R} 0-1