[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "2009.06.06"]
[Round "4"]
[White "Chakraborty, Dwijendra"]
[Black "Adelberg, David"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "2004"]
[BlackElo "2158"]
[PlyCount "39"]
[EventDate "2009.06.05"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nf6 6. Nc3 g6 7. 0-0 Bg7 8. d4 cxd4 9. Nxd4 0-0 10. f3 Rc8 11. b3 d5 12. exd5 Nxd5 13. Nxd5 e6 14. Be3 exd5 15. Rc1 dxc4 16. Rxc4 Rxc4 17. bxc4 Nc6 18. Nxc6 Qxc6 19. Qd5 Qa6 20. Rb1 1/2-1/2

