Author: Uri Blass
Date: 03:43:40 12/07/03
I tested my engine in the pet test suite and I found that it failed to solve 25 that was mentioned as one of the easy positions by Thomas Mayer(it solved it but unforntuanately changes its mind later) see http://f11.parsimony.net/forum16635/messages/49405.htm I decided to test Yace padderborn and it solves it in less than 1 seconds but the score if clearly bad for white and the main line is wrong at least in the first iterations. Yace does not see the draw and I think that a scoring system that gives only points for correct move without looking at the main line and the evaluation is clearly wrong and probably a lot of engines that solved 25 fail to find all the right moves that are given in http://homepages.caverock.net.nz/~peter/eg_test/pet025.htm and may lose the game if they are white inspite of first correct move(Yace seems to find more and more correct moves in its main line when I give it more time so it probably can save the game) New game [D]4K3/2k1Bp1N/6p1/5PP1/8/7p/b7/8 w - - 0 1 Analysis by Yace Paderborn: 1.fxg6 fxg6 2.Bd8+ Kd6 3.Nf6 +- (1.49) Depth: 1 00:00:00 1.fxg6 fxg6 2.Bd8+ Kd6 3.Nf6 +- (1.49) Depth: 1 00:00:00 1.fxg6 fxg6 2.Bd8+ Kd6 3.Nf6 +- (1.49) Depth: 1 00:00:00 1.fxg6 fxg6 2.Bd8+ Kd6 3.Nf6 +- (1.49) Depth: 3 00:00:00 1.fxg6 fxg6 2.Bd8+ Kd6 3.Nf6 +- (1.49) Depth: 3 00:00:00 1.fxg6 fxg6 2.Bd8+ Kd6 3.Nf6 +- (1.49) Depth: 3 00:00:00 1.fxg6 fxg6 2.Bd8+ Kd6 3.Nf6 +- (1.49) Depth: 3 00:00:00 1.fxg6 fxg6 2.Bd8+ Kd6 3.Nf6 +- (1.49) Depth: 3 00:00:00 1.fxg6 fxg6 2.Bd8+ Kd6 3.Nf6 +- (1.49) Depth: 3 00:00:00 1.fxg6 fxg6 2.Bd8+ Kd6 3.Nf6 +- (1.49) Depth: 3 00:00:00 1.fxg6 fxg6 2.Bd8+ Kd6 3.Nf6 +- (1.49) Depth: 3 00:00:00 1.fxg6 fxg6 2.Bd8+ Kd6 3.Nf6 +- (1.49) Depth: 3 00:00:00 1.fxg6 fxg6 2.Bd8+ Kd6 3.Nf6 +- (1.49) Depth: 3 00:00:00 1.fxg6 fxg6 2.Bd8+ Kd6 3.Nf6 +- (1.49) Depth: 3 00:00:00 1.fxg6 h2 2.g7 f6 3.g8Q Bxg8 ± (1.26) Depth: 4 00:00:00 1.fxg6 h2 2.g7 f6 3.g8Q Bxg8 ± (1.26) Depth: 4 00:00:00 1.fxg6 fxg6 2.Bf6 Kd6 3.Nf8 h2 ± (1.03) Depth: 5 00:00:00 1.fxg6 fxg6 2.Bf6 Kd6 3.Nf8 h2 ± (1.03) Depth: 5 00:00:00 1.fxg6 fxg6 2.Nf6 h2 3.Ne4 h1Q 4.Bf6 ² (0.63) Depth: 6/14 00:00:00 15kN 1.fxg6 h2 2.g7 f6 3.g8N h1Q 4.gxf6 ³ (-0.37) Depth: 6/14 00:00:00 24kN 1.fxg6 h2 2.gxf7 Bxf7+ 3.Kxf7 h1Q 4.g6 Qd5+ 5.Kf6 Kd7 µ (-1.17) Depth: 6/17 00:00:00 40kN 1.Bf6 gxf5 µ (-0.84) Depth: 6/17 00:00:00 49kN 1.Bf6 gxf5 2.Be5+ Kc6 3.Nf6 Bc4 4.Bh2 ± (0.93) Depth: 6/17 00:00:00 52kN 1.Bf6 gxf5 2.Be5+ Kc6 3.Nf6 Bc4 4.Bh2 ± (0.93) Depth: 6/19 00:00:00 55kN 1.Bf6 Kd6 2.Kf8 h2 3.Bb2 h1Q 4.fxg6 ² (0.53) Depth: 7/19 00:00:00 68kN 1.Bf6 Kd6 2.Kf8 h2 3.Bb2 h1Q 4.fxg6 ³ (-0.47) Depth: 7/19 00:00:00 72kN 1.Bf6 Kd6 2.fxg6 h2 3.g7 h1Q 4.g8Q Kc6 ³ (-0.47) Depth: 7/19 00:00:00 83kN 1.Bf6 Kd6 2.fxg6 h2 3.g7 h1Q 4.g8Q Kc6 ³ (-0.47) Depth: 7/19 00:00:00 119kN 1.Bf6 Kd6 2.fxg6 fxg6 3.Kf8 h2 4.Ke8 h1Q 5.Kf8 µ (-0.87) Depth: 8/19 00:00:01 137kN 1.Bf6 Kd6 2.fxg6 fxg6 µ (-0.87) Depth: 8/19 00:00:01 143kN 1.Bf6 Kd6 2.fxg6 fxg6 µ (-0.87) Depth: 8/19 00:00:01 208kN 1.Bf6 Kd6 2.fxg6 fxg6 3.Be7+ Kc6 4.Bf6 h2 5.Be5 h1Q 6.Bh2 µ (-1.27) Depth: 9/19 00:00:01 245kN 1.Bf6 Kd6 2.fxg6 fxg6 3.Be7+ Kc6 4.Bf6 h2 5.Be5 h1Q 6.Bh2 -+ (-2.27) Depth: 9/19 00:00:01 285kN 1.Bf6 Kd6 2.fxg6 fxg6 3.Be7+ Kc6 4.Bd6 Kxd6 5.Nf6 h2 6.Ne4+ Ke5 7.Nf2 -+ (-2.61) Depth: 9/21 00:00:01 351kN 1.Bf6 Kd6 2.fxg6 fxg6 3.Be7+ Kc6 4.Bd6 Kxd6 5.Nf6 h2 6.Ne4+ Ke5 7.Nf2 -+ (-2.61) Depth: 9/25 00:00:02 812kN 1.Bf6 Kd6 2.Be7+ Kc6 3.fxg6 fxg6 4.Bd6 Kxd6 5.Nf6 h2 6.Ne4+ Ke5 7.Ke7 h1Q 8.Nf6 -+ (-2.73) Depth: 10/25 00:00:02 1001kN 1.Bf6 Kd6 2.Be7+ Kc6 3.fxg6 fxg6 4.Bd6 Kxd6 5.Nf6 h2 6.Ne4+ Ke5 7.Ke7 h1Q 8.Nf6 -+ (-2.73) Depth: 10/25 00:00:03 1371kN 1.Bf6 Kd6 2.Be7+ Kc6 3.fxg6 fxg6 4.Bd6 Kxd6 5.Nf6 h2 6.Nh5 h1Q 7.Ng3 Qh7 8.Nf5+ gxf5 9.g6 -+ (-3.13) Depth: 11/27 00:00:04 1616kN 1.Bf6 Kd6 2.Be7+ Kc6 3.Bd6 Kxd6 4.Nf6 h2 5.Ne4+ Ke5 6.Ng3 gxf5 7.Nh1 f4 -+ (-3.47) Depth: 11/29 00:00:04 1969kN 1.Bf6 Kd6 2.Be7+ Kc6 3.Bd6 Kxd6 4.Nf6 h2 5.Ne4+ Ke5 6.Ng3 gxf5 7.Nh1 f4 -+ (-3.47) Depth: 11/29 00:00:07 3019kN 1.Bf6 Kd6 2.Be7+ Kc6 3.fxg6 fxg6 4.Bd6 Kxd6 5.Nf6 h2 6.Ne4+ Ke5 7.Ng3 Kf4 8.Nh1 Kxg5 -+ (-3.70) Depth: 12/30 00:00:09 4009kN 1.Bf6 Kd6 2.Be7+ Kc6 3.fxg6 fxg6 4.Bd6 Kxd6 5.Nf6 h2 6.Ne4+ Ke5 7.Ng3 Kf4 8.Nh1 Kxg5 -+ (-3.70) Depth: 12/31 00:00:13 6085kN 1.Bf6 Kd6 2.Be7+ Kc6 3.fxg6 fxg6 4.Bd6 Kxd6 5.Nf6 h2 6.Ne4+ Ke5 7.Nf2 Kf4 8.Ke7 Kxg5 9.Nh1 -+ (-3.71) Depth: 13/36 00:00:22 10165kN 1.Bf6 Kd6 2.Be7+ Kc6 3.fxg6 fxg6 4.Bd6 Kxd6 5.Nf6 h2 6.Ne4+ Ke5 7.Nf2 Kf4 8.Ke7 Kxg5 9.Nh1 -+ (-3.71) Depth: 13/36 00:00:35 16295kN 1.Bf6 Kd6 2.Be7+ Kc6 3.fxg6 fxg6 4.Bd6 Kxd6 5.Nf6 h2 6.Ne4+ Ke5 7.Nf2 Kf4 8.Nh1 Bd5 9.Nf2 Kxg5 10.Kf8 -+ (-3.99) Depth: 14/36 00:00:52 24389kN 1.Bf6 Kd6 2.Be7+ Kc6 3.fxg6 fxg6 4.Bd6 Kxd6 5.Nf6 h2 6.Ne4+ Ke5 7.Nf2 Kf4 8.Nh1 Bd5 9.Nf2 Kxg5 10.Kf8 -+ (-3.99) Depth: 14/36 00:01:24 39229kN 1.Bf6 Kd6 2.Be7+ Kc6 3.fxg6 fxg6 4.Bd6 Kxd6 5.Nf6 h2 6.Ng4 h1Q 7.Nh2 -+ (-4.39) Depth: 15/36 00:01:38 45423kN 1.Bf6 Kd6 2.Be7+ Kc6 3.fxg6 fxg6 4.Bd6 Kxd6 5.Nf6 h2 6.Ne4+ Ke5 7.Nc3 -+ (-5.39) Depth: 15/36 00:01:50 51152kN 1.Bf6 Kd6 2.Be7+ Kc6 3.fxg6 fxg6 4.Bd6 Kxd6 5.Nf6 h2 6.Ne4+ Ke5 7.Nf2 Kf4 8.Ke7 Kg3 9.Nh1+ Kg2 10.Kf6 Kxh1 -+ (-5.54) Depth: 15/38 00:02:21 64828kN 1.Bf6 Kd6 2.Be7+ Kc6 3.fxg6 fxg6 4.Bd6 Kxd6 5.Nf6 h2 6.Ne4+ Ke5 7.Nf2 Kf4 8.Ke7 Kg3 9.Nh1+ Kg2 10.Kf6 Kxh1 -+ (-5.54) Depth: 15/38 00:03:55 106272kN 1.Bf6 Kd6 2.Be7+ Kc6 3.fxg6 fxg6 4.Bd6 Kxd6 5.Nf6 h2 6.Kd8 h1Q 7.Nh5 -+ (-5.94) Depth: 16/38 00:04:23 118123kN 1.Bf6 Kd6 2.Be7+ Kc6 3.f6 h2 4.Kf8 h1Q 5.Kg7 Qh5 6.Kg8 Bc4 7.Bd8 Kd6 8.Be7+ Ke5 9.Bc5 Qh4 10.Be7 -+ (-6.66) Depth: 16/41 00:05:37 152198kN 1.Bf6 Kd6 2.Be7+ Kc6 3.f6 h2 4.Kf8 h1Q 5.Kg7 Qh5 6.Kg8 Bc4 7.Bd8 Kd6 8.Be7+ Ke5 9.Bc5 Qh4 10.Be7 -+ (-6.66) Depth: 16/43 00:10:00 275874kN 1.Bf6 Kd6 2.Be7+ Kc6 3.f6 h2 4.Kf8 h1Q 5.Kg7 Kd5 6.Bd8 Qh5 7.Kh8 Bc4 8.Bb6 Qh4 9.Kg8 -+ (-6.70) Depth: 17/45 00:12:45 348980kN (Blass, Tel-Aviv 07.12.2003) Uri
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