Author: John Merlino
Date: 10:49:05 09/16/03
Go up one level in this thread
Chessmaster 9000 (on a humble P3-733) says that 36.Bxc7 gives White a very slight advantage: Time Depth Score Positions Moves 0:00 1/3 -0.77 1386 36.a4 Nd6 37.Kf2 Nf5 0:00 1/3 -0.76 1891 36.Qc2 Bd3 37.Qd2 0:00 1/3 -0.51 1073 36.a4 Qd6 37.Bd4 e5 0:00 1/3 0.40 1054 36.Bxc7 e5 37.Bxa5 exf4 38.exf4 0:00 1/4 0.37 3127 36.Bxc7 Qc8 37.Bxa5 e5 0:00 1/5 0.31 9375 36.Bxc7 Qc8 37.Bxa5 e5 38.a4 exf4 39.exf4 0:00 1/6 0.31 25753 36.Bxc7 Qc8 37.Bxa5 e5 38.a4 exf4 39.exf4 0:00 1/7 0.13 66017 36.Bxc7 Qc8 37.Bxa5 e5 38.a4 Qg4 39.Rh1 exf4 40.exf4 0:02 1/8 0.24 129601 36.Bxc7 axb4 37.Qxb4 e5 38.Nd7 Qxb4+ 39.axb4 exf4 40.Bxf4 0:03 1/9 0.25 295841 36.Bxc7 axb4 37.Qxb4 e5 38.Nd7 Qxb4+ 39.axb4 exf4 40.Bxf4 Bb5 0:07 1/10 0.05 691071 36.Bxc7 axb4 37.Qxb4 e5 38.Nd7 Qxb4+ 39.axb4 exf4 40.Bxf4 Bb5 41.Nc5 Nd6 0:32 2/11 0.21 3089787 36.Bxc7 axb4 37.Qxb4 e5 38.Nd7 Qxb4+ 39.axb4 exf4 40.Bxf4 Bb5 41.Nc5 Nd6 42.Rd2 1:31 3/12 0.21 8736960 36.Bxc7 axb4 37.Qxb4 e5 38.Nd7 Qxb4+ 39.axb4 exf4 40.Bxf4 Bb5 41.Nc5 Nd6 42.Rd2 7:16 4/13 0.18 43199334 36.Bxc7 axb4 37.Qxb4 e5 38.Nd7 Qxb4+ 39.axb4 exf4 40.Bxf4 Ra6 41.Rb2 Nd6 42.Be5 Ra1+ 43.Kd2 As for the potential sacrifice, CM9000 (remember this is a P3-733) says: Time Depth Score Positions Moves 0:00 1/3 -0.39 1217 20.Ke1 Nf6 21.Qc2 Qf3 0:00 1/3 -0.28 1477 20.Kg1 Nf6 21.Nd4 Bxf1 22.Rxf1 Nxd4 23.Qxd4 0:00 1/4 -0.13 2586 20.Kg1 Nf6 21.g4 fxg4 22.Ng3 0:00 1/4 -0.12 3938 20.Kg2 Nf6 21.Qc2 Nd5 22.Kf2 0:00 1/5 -0.23 10953 20.Kg2 Nf6 21.Qc2 Ne4 22.Re1 Rff8 0:00 1/6 -0.16 30396 20.Kg2 Nf6 21.Qc2 Ne4 22.Re1 Rff8 23.g4 0:01 1/7 -0.30 148469 20.Kg2 Nf6 21.Qc2 Bb7 22.Kg1 Ne7 23.Bg2 Bxg2 24.Kxg2 0:03 1/8 -0.45 334409 20.Kg2 Nf6 21.Re1 Ne4 22.Qc2 Qg6 23.g4 fxg4 0:09 1/9 -0.54 830032 20.Kg2 Nf6 21.Ng1 Bxf1+ 22.Rxf1 Ne4 23.Qc2 Qg6 24.Ne2 Re8 25.b5 0:23 1/10 -0.67 2128552 20.Kg2 Nf6 21.Qd2 Ne4 22.Qc2 Qg6 23.g4 fxg4 24.Ng3 Bxf1+ 25.Raxf1 gxh3+ 26.Rxh3 0:29 1/10 -0.62 2621734 20.Kg1 Nf6 21.Rh2 Ne4 22.g4 Nxc3 23.gxh5 Nxe2+ 24.Bxe2 Bxe2 25.Rxe2 d6 26.Rg2 0:32 1/10 -0.40 2907220 20.hxg4 Qxh1 21.Bg2 Qh6 22.Nd4 Raf8 23.Rh1 Qg6 24.gxf5 exf5 0:35 2/11 -0.42 3200566 20.hxg4 Qxh1 21.Bg2 Qh6 22.Nd4 Rd8 23.Rh1 Qg6 24.gxf5 exf5 25.Bd5 1:05 3/12 -0.43 6254954 20.hxg4 Qxh1 21.Bg2 Qh6 22.Nd4 Rd8 23.Rh1 Qf6 24.g5 Qg6 25.Nxc6 dxc6 26.Bxc6 e5 27.b5 2:41 4/13 -0.55 15885315 20.hxg4 Qxh1 21.Bg2 Qh6 22.gxf5 exf5 23.Rh1 Qg6 24.Bd5 Bxe2 25.Kxe2 Re8 26.Kf2 a6 27.Bxf7+ Qxf7 5:23 4/13 -0.36 31324316 20.Kg1 Nf6 21.Qe1 Ne4 22.g4 Qg6 23.Bg2 Bxe2 24.Bxe4 Bxg4 25.hxg4 fxe4 26.Qh4 e5 27.Bxe5 Nxe5 28.fxe5 10:32 5/14 -0.42 62461581 20.Kg1 Nf6 21.Qe1 Ne4 22.Rh2 Qf3 23.Nd4 Qxf1+ 24.Qxf1 Bxf1 25.Nxc6 dxc6 26.Rxf1 Rd8 27.g4 Rd3 28.gxf5 exf5 13:45 5/14 -0.35 83876363 20.hxg4 Qxh1 21.Bg2 Qh6 22.gxf5 exf5 23.Rh1 Qg6 24.Bd5 Re8 25.Qb3 Bxe2 26.Kxe2 h6 27.Bxf7+ Qxf7 28.Qxf7+ Kxf7 jm
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