[Event "e2e4.org.uk Sunningdale Open"] [Site "Ascot (Berkshire) ENG"] [Date "2010.09.11"] [EventDate "2010.09.10"] [Round "4"] [Result "0-1"] [White "Ian R Henderson"] [Black "Claus Seyfried"] [ECO "D31"] [WhiteElo "2090"] [BlackElo "2139"] [PlyCount "50"] 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. a4 Bb4 6. e4 Nf6 7. Qc2 b5 8. Be2 Bb7 9. e5 Nd5 10. O-O Nxc3 11. bxc3 Be7 12. Ba3 Nd7 13. Rfb1 Bxa3 14. Rxa3 Qe7 15. Qb2 a6 16. Bxc4 O-O 17. Be2 Nb6 18. c4 Nxa4 19. Qc1 Nb6 20. c5 Nd5 21. Ra5 f6 22. Qd2 Rad8 23. Ra3 fxe5 24. Nxe5 Nf4 25. Rd1 Rxd4 0-1