Author: John Merlino
Date: 10:46:44 02/01/03
Go up one level in this thread
On February 01, 2003 at 13:06:38, Steven J. Brann wrote: >On February 01, 2003 at 09:38:27, Eduard Nemeth wrote: > >>[D]8/8/kb6/2p5/ppP5/1P6/PK6/8 b - - 0 1 >> >>This is a komposition from me. >> >>Which plays Your program? ;-) >> >>( 1...a3+ is only a draw ) >> >>My Chess: >> >>http://www.eduardonline.de.vu > > >CM9000 finds Bc7 initially then the eval bumps up at 0:49 with Kb7. The score >increases significantly with depth of search. Analysis on a 1.9G P4 computer >with default personality except for selective search = 12 and 128MB hash. > > >Time Depth Score Positions Moves >0:14 14/23 -3.48 6111355 1...Bb6-c7 2.Kb2-c2 Ka6-b6 3.Kc2-d3 > Kb6-c6 4.Kd3-e4 Kc6-d6 5.Ke4-f5 > Bc7-d8 6.Kf5-e4 Bd8-f6 7.Ke4-f5 > Bf6-c3 8.Kf5-g6 a4xb3 9.a2xb3 Kd6-e6 > 10.Kg6-h7 Bc3-e5 11.Kh7-g6 Be5-c7 > 12.Kg6-g7 Ke6-e5 13.Kg7-f7 >0:19 15/24 -3.52 8025717 1...Bb6-c7 2.Kb2-c2 Ka6-b6 3.Kc2-d3 > Kb6-c6 4.Kd3-e4 Kc6-d6 5.Ke4-f5 > Bc7-d8 6.Kf5-e4 Bd8-f6 7.Ke4-f5 > Bf6-c3 8.Kf5-g6 a4xb3 9.a2xb3 Kd6-e6 > 10.Kg6-h7 Ke6-f7 11.Kh7-h6 Kf7-f6 > 12.Kh6-h7 Bc3-e5 13.Kh7-h6 Be5-d6 > 14.Kh6-h5 Kf6-e5 >0:30 16/25 -3.54 11835219 1...Bb6-c7 2.Kb2-c2 Ka6-b6 3.Kc2-d3 > Kb6-c6 4.Kd3-e4 Kc6-d6 5.Ke4-f5 > Bc7-d8 6.Kf5-e4 Bd8-f6 7.Ke4-f5 > Bf6-c3 8.b3xa4 Kd6-c6 9.a4-a5 Bc3-d4 > 10.Kf5-g4 Kc6-b7 11.Kg4-f5 Bd4-e3 > 12.Kf5-g4 Kb7-a6 13.Kg4-h3 Ka6xa5 > 14.Kh3-g4 >0:49 16/25 -6.58 19238805 1...Ka6-b7 2.Kb2-c2 a4xb3+ 3.a2xb3 > Kb7-c6 4.Kc2-d3 Kc6-d6 5.Kd3-e4 > Kd6-e6 6.Ke4-f4 Bb6-d8 7.Kf4-e4 > Bd8-g5 8.Ke4-d3 Ke6-e5 9.Kd3-c2 > Ke5-d4 10.Kc2-b2 Kd4-d3 11.Kb2-b1 > Kd3-c3 12.Kb1-a2 Bg5-f4 13.Ka2-a1 > Kc3xb3 14.Ka1-b1 Kb3xc4 15.Kb1-c2 >1:03 17/26 -6.77 24434903 1...Ka6-b7 2.Kb2-c2 a4xb3+ 3.a2xb3 > Kb7-c6 4.Kc2-d3 Kc6-d6 5.Kd3-e4 > Kd6-e6 6.Ke4-f4 Bb6-d8 7.Kf4-e4 > Bd8-g5 8.Ke4-d3 Ke6-e5 9.Kd3-c2 > Ke5-d4 10.Kc2-b2 Kd4-d3 11.Kb2-b1 > Kd3-c3 12.Kb1-a2 Bg5-f4 13.Ka2-a1 > Kc3xb3 14.Ka1-b1 Kb3-c3 15.Kb1-a2 > b4-b3+ 16.Ka2-b1 Kc3xc4 >1:41 18/27 -6.86 37327060 1...Ka6-b7 2.Kb2-c2 a4xb3+ 3.a2xb3 > Kb7-c6 4.Kc2-d3 Kc6-d6 5.Kd3-e4 > Kd6-e6 6.Ke4-f4 Bb6-d8 7.Kf4-e4 > Bd8-g5 8.Ke4-d3 Ke6-e5 9.Kd3-c2 > Ke5-d4 10.Kc2-b2 Kd4-d3 11.Kb2-b1 > Kd3-c3 12.Kb1-a2 Bg5-f4 13.Ka2-a1 > Kc3xb3 14.Ka1-b1 Bf4-g5 15.Kb1-a1 > Kb3xc4 16.Ka1-a2 Kc4-c3 >2:48 19/28 -6.91 58054235 1...Ka6-b7 2.Kb2-c2 a4xb3+ 3.a2xb3 > Kb7-c6 4.Kc2-d3 Kc6-d6 5.Kd3-e4 > Kd6-e6 6.Ke4-f4 Bb6-d8 7.Kf4-e4 > Bd8-g5 8.Ke4-d3 Ke6-e5 9.Kd3-c2 > Ke5-d4 10.Kc2-b2 Kd4-d3 11.Kb2-b1 > Kd3-c3 12.Kb1-a2 Bg5-f4 13.Ka2-a1 > Kc3xb3 14.Ka1-b1 Bf4-g5 15.Kb1-a1 > Kb3xc4 16.Ka1-b2 Bg5-f6+ >4:39 20/29 -7.16 91530777 1...Ka6-b7 2.Kb2-c2 a4xb3+ 3.a2xb3 > Kb7-c6 4.Kc2-d3 Kc6-d6 5.Kd3-e4 > Kd6-e6 6.Ke4-f4 Bb6-d8 7.Kf4-e4 > Bd8-g5 8.Ke4-d3 Ke6-e5 9.Kd3-c2 > Ke5-d4 10.Kc2-b2 Bg5-f4 11.Kb2-b1 > Kd4-c3 12.Kb1-a2 Bf4-c1 13.Ka2-a1 > Kc3xb3 14.Ka1-b1 Kb3xc4 15.Kb1-c2 > b4-b3+ 16.Kc2-d1 Bc1-g5 >9:45 21/30 -10.55 186565650 1...Ka6-b7 2.Kb2-c2 a4xb3+ 3.a2xb3 > Kb7-c6 4.Kc2-d3 Kc6-d6 5.Kd3-e4 > Kd6-e6 6.Ke4-f4 Bb6-d8 7.Kf4-e4 > Bd8-g5 8.Ke4-d3 Ke6-e5 9.Kd3-c2 > Ke5-d4 10.Kc2-d1 Kd4-c3 11.Kd1-e2 > Kc3xb3 12.Ke2-d3 Bg5-f4 13.Kd3-e2 > Kb3xc4 14.Ke2-f3 b4-b3 15.Kf3xf4 > b3-b2 16.Kf4-f3 b2-b1=Q >14:01 22/31 -10.83 261307554 1...Ka6-b7 2.Kb2-c2 a4xb3+ 3.a2xb3 > Kb7-c6 4.Kc2-d3 Kc6-d6 5.Kd3-e4 > Kd6-e6 6.Ke4-f4 Bb6-d8 7.Kf4-e4 > Bd8-g5 8.Ke4-d3 Ke6-e5 9.Kd3-e2 > Ke5-d4 10.Ke2-f3 Bg5-h6 11.Kf3-g4 > Kd4-c3 12.Kg4-f5 Kc3xb3 13.Kf5-g6 > Kb3xc4 14.Kg6xh6 Kc4-c3 15.Kh6-g5 > b4-b3 16.Kg5-f4 b3-b2 > > >Steve Interesting. The default personality, on a much slower P3-733, finds Kb7 in less than 1/3 the time -- 15 seconds to be precise! Hmmmm..... Either way, as somebody else pointed out, it appears that the key to this position is not to find Kb7, but to avoid a3+.... Time Depth Score Positions Moves 0:06 13/17 -3.38 875778 1...a3+ 2.Kc2 Kb7 3.Kd3 Kc6 4.Ke3 Bc7 5.Kf3 Kd6 6.Ke4 Ke6 7.Kd3 Kf5 8.Ke3 Bf4+ 9.Kd3 Ke5 10.Ke2 Ke4 0:09 14/18 -3.45 1395259 1...a3+ 2.Kc2 Kb7 3.Kd3 Kc6 4.Ke3 Bc7 5.Kf3 Kd6 6.Ke4 Ke6 7.Kd3 Kf5 8.Ke3 Bf4+ 9.Kd3 Ke5 10.Ke2 Ke4 11.Kf1 0:10 15/19 -3.37 1707877 1...a3+ 2.Kc2 Kb7 3.Kd3 Kc6 4.Ke3 Bc7 5.Kf3 Kd6 6.Ke4 Ke6 7.Kd3 Kf5 8.Ke3 Be5 9.Kd3 Bd4 10.Kd2 Ke4 11.Ke2 0:15 15/19 -3.40 2648562 1...Kb7 2.Kc2 axb3+ 3.axb3 Kc6 4.Kd3 Kd6 5.Ke4 Bd8 6.Kf5 Bg5 7.Ke4 Ke6 8.Kd3 Kf5 9.Kc2 Ke4 10.Kb1 Kd4 11.Kb2 0:21 16/20 -3.39 3665202 1...Kb7 2.Kc2 Bd8 3.Kd3 Bc7 4.Ke4 Bd6 5.Kd3 Kc6 6.Ke3 a3 7.Ke4 Bc7 8.Kf5 Kd6 9.Kf6 Kd7 10.Kf5 Bh2 11.Ke4 Ke6 0:28 17/21 -3.48 4745899 1...Kb7 2.Kc2 Bd8 3.Kd3 Bc7 4.Ke4 Bd6 5.Kd3 Kc6 6.Ke3 a3 7.Ke4 Bc7 8.Kf5 Kd7 9.Kf6 Bg3 10.Kg5 Kd6 11.Kg4 Bh2 12.Kf5 0:37 18/22 -3.50 6179884 1...Kb7 2.Kc2 Bd8 3.Kd3 Bc7 4.Ke4 Bd6 5.Kd3 Kc6 6.Ke3 a3 7.Ke4 Be7 8.Kd3 Kd6 9.Ke4 Bf6 10.Kd3 Be5 11.Ke3 Bc3 12.Ke4 0:54 19/23 -3.91 8798309 1...Kb7 2.Kc2 Bd8 3.Kd3 axb3 4.axb3 Kc6 5.Ke4 Kd6 6.Kf5 Bg5 7.Ke4 Ke6 8.Kd3 Ke5 9.Kc2 Bf4 10.Kd3 Bc1 11.Kc2 Kd4 12.Kb1 Kc3 13.Kxc1 Kxb3 14.Kb1 Kxc4 15.Kc2 1:45 20/24 -5.53 16656943 1...Kb7 2.Kc2 axb3+ 3.axb3 Kc6 4.Kd3 Kd6 5.Ke4 Ke6 6.Kd3 Kf5 7.Ke3 Bc7 8.Kd3 Bf4 9.Ke2 Ke4 10.Kf2 Kd4 11.Kf3 Kc3 12.Ke2 Kxb3 13.Kd3 Kb2 2:22 21/25 -6.58 22205635 1...Kb7 2.Kc2 axb3+ 3.axb3 Kc6 4.Kd3 Kd6 5.Ke4 Ke6 6.Kd3 Bd8 7.Kc2 Bg5 8.Kd3 Ke5 9.Kc2 Kd4 10.Kb2 Kd3 11.Kb1 Kc3 12.Ka2 Bf4 13.Ka1 Kxb3 14.Kb1 Kxc4 15.Kc2 3:16 22/26 -6.55 30260687 1...Kb7 2.Kc2 axb3+ 3.axb3 Kc6 4.Kd3 Kd6 5.Ke4 Ke6 6.Kd3 Bd8 7.Kc2 Bg5 8.Kd3 Ke5 9.Kc2 Ke4 10.Kb1 Kd3 11.Kb2 Bf6+ 12.Kb1 Kc3 13.Ka2 Bg5 14.Ka1 Kxb3 15.Kb1 Kxc4 16.Kc2 5:31 23/27 -7.13 48276956 1...Kb7 2.Kc2 axb3+ 3.axb3 Kc6 4.Kd3 Kd6 5.Ke4 Ke6 6.Kd3 Kf5 7.Ke3 Bc7 8.Kd3 Bf4 9.Kc2 Ke4 10.Kd1 Kd3 11.Ke1 Kc3 12.Ke2 Bg5 13.Kf3 Kxb3 14.Ke4 Kxc4 15.Kf5 Kc3 16.Ke4 jm
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