[Event "Nashua op"]
[Site "Nashua"]
[Date "2009.03.29"]
[Round "4"]
[White "Vaughan, John"]
[Black "O'Callaghan, Sean"]
[Result "1-0"]
[ECO "B14"]
[PlyCount "53"]
[EventDate "2009.03.28"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "CBM 129 Extra"]
[Source "ChessBase"]
[SourceDate "2009.05.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 c5 3. cxd5 Nf6 4. Nc3 Nxd5 5. e3 cxd4 6. exd4 e6 7. Nf3 g6 8. Bc4 Nxc3 9. bxc3 Bg7 10. 0-0 0-0 11. Qe2 Re8 12. Bf4 a6 13. a4 Nc6 14. Rfe1 Bd7 15. Qb2 Na5 16. Bf1 f6 17. c4 Bc6 18. Nd2 b6 19. Be3 Ra7 20. d5 exd5 21. cxd5 Bxd5 22. Qxb6 Qxb6 23. Bxb6 Rae7 24. Rxe7 Rxe7 25. Bxa5 f5 26. Rb1 Bc4 27. Nxc4 1-0

