Author: Vincent Lejeune
Date: 12:24:09 05/06/04
Go up one level in this thread
On May 06, 2004 at 15:12:19, John Merlino wrote: >On May 06, 2004 at 14:59:35, Rob Basham wrote: > >>Hi John....sorry about that...:-) >> >>it just finds Qh6 with no mate ann. >> >>I am just guessing it is about 12 moves to mate from what I can see >>after....BXQ.....etc. >> >>thanks.. >>Rob > >Ok, that's what I thought. Even after forcing 1.Qh6 Bxh6 2.Rxh6 g5 3.Bd3, CM_SKR >does not announce a mate in under two minutes, and I would have been pretty >surprised if Ruffian could have accomplished that. > >CM_SKR on an AMD 2500+ finds Qh6 in 3 seconds: > >Time Depth Score Positions Moves >0:00 1/3 1.37 2800 1.Qh4 Nh5 2.Bxg7 Kxg7 3.gxh5 bxc3 > 4.hxg6 fxg6 >0:00 1/4 0.91 7011 1.Qh4 Nh5 2.Bxg7 Kxg7 3.axb4 >0:00 1/5 0.47 37466 1.Qh4 Nh5 2.Bxg7 bxa3 3.gxh5 axb2+ > 4.Kb1 Kxg7 5.Bxa6 Qxc3 6.Bxc8 Rxc8 > 7.hxg6 fxg6 >0:00 1/5 0.65 60499 1.axb4 Rxb4 2.Bxf6 exf6 3.Qh4 f5 > 4.Bxa6 Rcb8 >0:00 1/6 0.65 153567 1.axb4 Rxb4 2.Bxf6 exf6 3.Qh4 f5 > 4.Bxa6 Rcb8 >0:02 1/7 0.45 591402 1.axb4 Rxb4 2.Bxf6 exf6 3.Qh4 f5 > 4.Bxa6 Rcb8 5.g5 Kf8 >0:03 1/7 2.66 851926 1.Qh6 Bxh6+ 2.Rxh6 g5 3.Bd3 Bf5 > 4.Nd5 Qb7 5.gxf5 e5 6.Nxf6+ Kf8 >0:05 1/8 7.86 1560145 1.Qh6 Bxh6+ 2.Rxh6 g5 3.Bd3 Bf5 > 4.exf5 e5 5.fxe6ep fxe6 6.Rg6+ > Qg7 7.Bxf6 Qxg6 8.Bxg6 >0:10 1/9 10.27 3133408 1.Qh6 Bxh6+ 2.Rxh6 g5 3.Bd3 Bf5 > 4.Bxf6 exf6 5.gxf5 Kf8 6.Nd5 Qxc2+ > 7.Bxc2 Ke8 8.Rh8+ Kd7 9.Rxc8 Kxc8 > 10.Rh8+ Kb7 11.Rxb8+ Kxb8 12.Nxb4 >0:24 1/10 10.36 7627723 1.Qh6 Bxh6+ 2.Rxh6 g5 3.Bd3 Qc6 > 4.Rh8+ Kg7 5.R1h7+ Kg6 6.e5+ Ne4 > 7.Nxe4 Qxc2+ 8.Bxc2 Rxc2+ 9.Kxc2 > Rxh8 10.Rxh8 dxe5 11.Bxe5 f6 12.Nc5 > Bd5 >0:51 1/11 10.32 17030905 1.Qh6 Bxh6+ 2.Rxh6 g5 3.Bd3 Qc6 > 4.Rh8+ Kg7 5.R1h7+ Kg6 6.e5+ Ne4 > 7.Nxe4 Qxc2+ 8.Bxc2 Rxc2+ 9.Kxc2 > Rxh8 10.Rxh8 bxa3 11.bxa3 dxe5 > 12.Bxe5 f6 13.Nc5 Bd5 > >My best estimate is that there is not a mate in even 15 moves, although a >particularly long think with CM during my lunch break might prove me wrong. > >jm about the same for CM9000+ss=16; amd 2800+ Time Depth Score Positions Moves 0:00 1/4 0.94 7030 1.Qh4 Nh5 2.Bxg7 Kxg7 3.axb4 0:00 1/5 0.51 37329 1.Qh4 Nh5 2.Bxg7 bxa3 3.gxh5 axb2+ 4.Kb1 Kxg7 5.Bxa6 Qxc3 6.Bxc8 Rxc8 7.hxg6 fxg6 0:00 1/5 0.67 60232 1.axb4 Rxb4 2.Bxf6 exf6 3.Qh4 f5 4.Bxa6 Rcb8 0:00 1/6 0.67 153336 1.axb4 Rxb4 2.Bxf6 exf6 3.Qh4 f5 4.Bxa6 Rcb8 0:02 1/7 0.48 587312 1.axb4 Rxb4 2.Bxf6 exf6 3.Qh4 f5 4.Bxa6 Rcb8 5.g5 Kf8 0:02 1/7 2.69 846178 1.Qh6 Bxh6+ 2.Rxh6 g5 3.Bd3 Bf5 4.Nd5 Qb7 5.gxf5 e5 6.Nxf6+ Kf8 0:04 1/8 7.93 1561819 1.Qh6 Bxh6+ 2.Rxh6 g5 3.Bd3 Bf5 4.exf5 e5 5.fxe6ep fxe6 6.Rg6+ Qg7 7.Bxf6 Qxg6 8.Bxg6 0:09 1/9 10.33 3139949 1.Qh6 Bxh6+ 2.Rxh6 g5 3.Bd3 Bf5 4.Bxf6 exf6 5.gxf5 Kf8 6.Nd5 Qxc2+ 7.Bxc2 Ke8 8.Rh8+ Kd7 9.Rxc8 Kxc8 10.Rh8+ Kb7 11.Rxb8+ Kxb8 12.Nxb4 0:22 1/10 10.42 7582372 1.Qh6 Bxh6+ 2.Rxh6 g5 3.Bd3 Qc6 4.Rh8+ Kg7 5.R1h7+ Kg6 6.e5+ Ne4 7.Nxe4 Qxc2+ 8.Bxc2 Rxc2+ 9.Kxc2 Rxh8 10.Rxh8 dxe5 11.Bxe5 f6 12.Nc5 Bd5 0:46 1/11 10.39 16718569 1.Qh6 Bxh6+ 2.Rxh6 g5 3.Bd3 Qc6 4.Rh8+ Kg7 5.R1h7+ Kg6 6.e5+ Ne4 7.Nxe4 Qxc2+ 8.Bxc2 Rxc2+ 9.Kxc2 Rxh8 10.Rxh8 bxa3 11.bxa3 dxe5 12.Bxe5 f6 13.Nc5 Bd5 2:07 1/12 10.35 46563929 1.Qh6 Bxh6+ 2.Rxh6 g5 3.Bd3 Qc6 4.Rh8+ Kg7 5.R1h7+ Kg6 6.e5+ Ne4 7.Nxe4 Qxc2+ 8.Bxc2 Rxc2+ 9.Kxc2 Rxh8 10.Rxh8 dxe5 11.Bxe5 f6 12.Bd4 bxa3 13.bxa3 Bd5 14.Kd3 5:50 1/13 11.11 128435232 1.Qh6 Bxh6+ 2.Rxh6 g5 3.Bd3 Qc6 4.Nd5 Qxc2+ 5.Bxc2 Bxd5 6.exd5 e5 7.dxe6ep fxe6 8.Bxf6 Kf7 9.Bxg5 e5 10.Rf6+ Ke8 11.Rxd6 bxa3 12.Rh8+ Kf7 13.Rxc8 Rxc8 14.bxa3 and after 1.Qh6 Bxh6+ 2.Rxh6 g5 3.Bd3 Qc6, no mate in view : Time Depth Score Positions Moves 0:14 1/9 9.31 5134014 4.Rh8+ Kg7 5.R1h7+ Kg6 6.e5+ Ne4 7.Nxe4 Qxc2+ 8.Bxc2 Rxc2+ 9.Kxc2 Rxh8 10.Rxh8 dxe5 11.Bxe5 f6 12.Bd4 bxa3 13.bxa3 Bd5 14.Kd3 0:50 1/10 9.31 18465142 4.Rh8+ Kg7 5.R1h7+ Kg6 6.e5+ Ne4 7.Nxe4 Qxc2+ 8.Bxc2 Rxc2+ 9.Kxc2 Rxh8 10.Rxh8 dxe5 11.Bxe5 f6 12.Bg3 bxa3 13.bxa3 Bd5 14.Kd3 1:00 1/10 10.09 22465562 4.Nd5 Qxc2+ 5.Bxc2 Bxd5 6.exd5 e5 7.dxe6ep fxe6 8.Bxf6 Kf7 9.Bxg5 e5 10.Rf6+ Ke8 11.Rxd6 bxa3 12.Rh8+ Kf7 13.Rd7+ Ke6 14.Rxc8 Rxc8 1:46 1/11 10.28 40736158 4.Nd5 Qxc2+ 5.Bxc2 Bxd5 6.exd5 e5 7.dxe6ep fxe6 8.Bxf6 Kf7 9.Bxg5 e5 10.Rf6+ Ke8 11.Rxd6 bxa3 12.bxa3 Kf7 13.Rxa6
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