I'm no expert, but in game 3 Black seems to have horrible piece positions after his 25th move. One try for White might have been 26. Bxb5. White is still up in material after the sac after all. Also without the b-pawn, Black no longer seems to have much of an attack, and his King seems to be overly exposed. Assuming the King takes White's Bishop, White is quickly able to bring force to bear on Black's King via Qe2, a4, and Rhd1. For example, 26. Bxb5 Kxb5, 27. Qe2+, and then either 27... Kb6 or 27... Kc6 gives White 28. a4 which seems to guarantee the penetration of his Queen at the right moment. Black's own Queen and his free rook appear to have few useful moves.
"samsloan" wrote in message oups.com...

[Event "World Open Championship"]
[Site "Valley Forge, Pennsylvania"]
[Date "2007.07.04"]
[Round "08"]
[White "Aaron,Deepak"]
[Black "Sloan,Sam"]
[Result "0-1"]
[ECO "C40"]
[WhiteElo "1978"]
[BlackElo "1934"]

1.e4 e5 2.Nf3 f6 3.Bc4 Ne7 4.Nc3 c6 5.d3 d5 6.Bb3 Bg4 7.h3
Bh5 8.Bd2 d4 9.Ne2 Bxf3 10.gxf3 Qd7 11.Ng3 c5 12.f4 Nbc6
13.f5 Nc8 14.Qh5+ Kd8 15.O-O-O b5 16.f4 Nb6 17.Be6 Qd6
18.fxe5 Nxe5 19.Ne2 a5 20.Nf4 c4 21.dxc4 Nbxc4 22.Bc3 Kc7
23.Rxd4 Qc5 24.Bxc4 Kb6 25.Ne6 Qe7 26.Bd5 Rc8 27.Rd2 Rxc3
28.bxc3 Qa3+ 29.Kd1 Qxc3 30.Rf1 Bb4 31.Rff2 Rc8 32.Bb3 a4
33.Nf4 Qa1+ 34.Ke2 Bxd2 35.Nd5+ Ka5 36.Kxd2 axb3 37.axb3
Qd4+ 38.Ke1 Qxe4+ 39.Qe2 Qxd5 40.c4 Nd3+ 41.Kd2 bxc4 42.b4+
Nxb4+ 43.Kc3 Qd3+ 0-1