Author: John Merlino
Date: 10:35:41 04/13/04
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On April 13, 2004 at 11:49:22, Art Basham wrote: >[D]r2qr1k1/pbp1bpp1/1p2p2p/3n4/3P1PN1/2PB3R/PP1BQ1PP/R5K1 w - - 0 1 > >Any programs find...1 Nxh6+....? > >This is a position I made up recently...just to see what would happen... > >Art CM9000, SKR personality on an AMD 2500+, says that Qe4 wins: Time Depth Score Positions Moves 0:00 1/3 0.93 3106 1.Re1 Qd6 2.Qf2 Nf6 0:00 1/3 1.05 6271 1.Rg3 Kf8 2.Ne5 Nf6 0:00 1/3 1.59 7143 1.Qe4 Kf8 2.Ne5 c5 3.Qh7 0:00 1/4 1.67 15295 1.Qe4 Kf8 2.Qh7 Bf6 3.Ne5 Bxe5 4.fxe5 0:00 1/5 1.67 33140 1.Qe4 Kf8 2.Qh7 Bf6 3.Ne5 Bxe5 4.fxe5 0:00 1/6 1.75 72323 1.Qe4 Kf8 2.Qh7 Bf6 3.Ne5 Ne7 4.Bb5 Bxe5 5.fxe5 0:01 1/7 1.70 226432 1.Qe4 Kf8 2.Qh7 Bf6 3.Ne5 Ne7 4.Rxh6 Qd5 5.Be4 0:05 1/8 1.89 1104174 1.Qe4 Kf8 2.Ne5 Bd6 3.c4 Bb4 4.Rd1 Bxd2 5.Rxd2 f5 0:15 1/9 2.25 3743745 1.Qe4 Kf8 2.Ne5 f5 3.Qf3 Bf6 4.c4 Ne7 5.Qxb7 Qxd4+ 6.Be3 Qxb2 0:33 1/10 2.36 8347482 1.Qe4 Kf8 2.Ne5 f5 3.Qf3 Kg8 4.Qg3 Nf6 5.Qg6 Rf8 6.Rxh6 c5 2:31 1/11 2.41 38133083 1.Qe4 Kf8 2.Ne5 c5 3.Rxh6 Bf6 4.Rxf6 gxf6 5.Qh7 Qc7 6.f5 Ke7 7.Qxf7+ Kd8 8.Bb5 Qxf7 9.Nxf7+ Ke7 10.Bxe8 Rxe8 11.fxe6 cxd4 After forcing 1.Nxh6+ gxh6, it says this: Time Depth Score Positions Moves 0:00 1/3 0.02 2579 2.Rxh6 Nf6 3.Re1 Kf8 0:00 1/3 0.48 3035 2.Qg4+ Kf8 3.Rxh6 Bf6 4.Rh7 0:00 1/3 0.92 4622 2.Qh5 Bf6 3.Qxh6 Bg7 0:00 1/4 1.01 6949 2.Qh5 Bf8 3.Rg3+ Bg7 4.Qxh6 Qf6 0:00 1/5 1.01 22628 2.Qh5 Bf8 3.Rg3+ Bg7 4.Qxh6 Qf6 0:00 1/6 0.29 63003 2.Qh5 Bf8 3.Rg3+ Bg7 4.Qxh6 Qf6 5.Qh7+ Kf8 6.Rf1 Ne7 7.Rg5 0:00 1/6 0.59 101950 2.Rg3+ Kf8 3.Qh5 Bf6 4.f5 Qd7 5.Rf1 c5 6.fxe6 Qxe6 7.Bxh6+ Ke7 0:00 1/7 0.76 232593 2.Rg3+ Kf8 3.Qh5 Bf6 4.f5 Bg5 5.Bxg5 hxg5 6.Qh6+ Ke7 7.Qxg5+ Kd6 0:06 1/8 0.07 1440268 2.Rg3+ Kf8 3.Qh5 Bd6 4.Qxh6+ Ke7 5.c4 Nf6 6.Re1 Rh8 7.Qg7 c5 8.d5 0:07 1/8 0.37 1899274 2.Qg4+ Kf8 3.Rxh6 Bf6 4.Re1 c5 5.f5 cxd4 6.fxe6 dxc3 7.bxc3 0:09 1/8 1.14 2210728 2.Qh5 Bf6 3.f5 Kf8 4.Bxh6+ Ke7 5.fxe6 fxe6 6.Qg6 Kd6 0:11 1/9 1.38 2830812 2.Qh5 Bf6 3.f5 Kf8 4.Bxh6+ Ke7 5.fxe6 fxe6 6.Qg6 Rg8 0:19 1/10 1.14 5080960 2.Qh5 Bf6 3.f5 Kf8 4.Bxh6+ Ke7 5.fxe6 fxe6 6.Qg6 Rg8 7.Qh7+ Kd6 8.Qe4 1:02 1/11 2.30 16405948 2.Qh5 Bf6 3.Qxh6 Bg7 4.Rg3 Qf6 5.Qh7+ Kf8 6.f5 Nxc3 7.Bxc3 a5 8.d5 e5 2:38 1/12 3.13 41277092 2.Qh5 Bf6 3.Qxh6 Bg7 4.Rg3 Qf6 5.Qh7+ Kf8 6.f5 Ne3 7.Bxe3 exf5 8.Bxf5 Rad8 9.Re1 So Nxh6+ might be a better move, but I would suspect that most engines will play Qe4. jm
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