Author: Mark Young
Date: 09:12:10 02/27/00
Go up one level in this thread
On February 26, 2000 at 19:34:58, blass uri wrote: >On February 26, 2000 at 19:26:54, blass uri wrote: > >>On February 26, 2000 at 19:21:28, blass uri wrote: >> >>>On February 26, 2000 at 19:08:36, Mike S. wrote: >>> >>>>Too easy? Ok, feed this one into your Fritz: >>>> >>>>[D]8/5pk1/5pn1/7p/4BPP1/4K2P/8/8 w - - 0 1 >>>>NOT 1.gxh5, because black plays 1...Nxf4! = Draw - white has the wrong colored >>>>bishop. >>>> >>>>Regards, >>>>M.Scheidl >>> >>>I do not see a win for white in different lines >>>gxh5 leads to a draw like other moves. >>> >>>Crafty also has no problem to avoid gxh5 but it changes nothing in this >>>position. >>> >>>Uri >> >>Second thought: >>The problem is not to avoid gxh5 but to find Bxg6 that is the winning move >> >>Crafty first idea is not gxh5 but is also not Bxg6 >> >>Uri > >I am not sure if it is a good problem >after Bxg6 Kxg6! I do not see a win for white What is the winning line? This looks to be a bogus test, all the moves look like a draw. Here is what Fritz is showing so far. New position 8/5pk1/5pn1/7p/4BPP1/4K2P/8/8 w - - 0 1 Analysis by Fritz 6: 1.Be4xg6 f7xg6 ² (0.34) Depth: 1/4 00:00:00 1.g4xh5 ± (1.06) Depth: 1/4 00:00:00 1.g4xh5 +- (1.53) Depth: 1/4 00:00:00 1.g4xh5 ± (0.88) Depth: 2/3 00:00:00 1.g4xh5 Ng6xf4 ² (0.38) Depth: 2/3 00:00:00 1.Be4-b1 ² (0.50) Depth: 2/6 00:00:00 1.Be4-b1 h5xg4 ± (0.88) Depth: 2/6 00:00:00 1.Be4-g2 ± (0.91) Depth: 2/6 00:00:00 1.Be4-g2 h5xg4 ± (1.13) Depth: 2/6 00:00:00 1.f4-f5 ± (1.19) Depth: 2/7 00:00:00 1.f4-f5 Ng6-e5 ± (1.31) Depth: 2/7 00:00:00 1.f4-f5 Ng6-e5 2.g4xh5 ± (1.31) Depth: 3/6 00:00:00 1.f4-f5 Ng6-e7 2.Be4-g2 h5xg4 3.h3xg4 ± (1.06) Depth: 4/8 00:00:00 1.f4-f5 h5xg4 2.h3xg4 Ng6-e5 3.Be4-f3 Kg7-h6 ± (0.84) Depth: 5/12 00:00:00 2kN 1.Be4-b1! ± (0.88) Depth: 5/12 00:00:00 2kN 1.Be4-f5! ± (0.91) Depth: 5/12 00:00:00 3kN 1.Be4-f5 h5xg4 2.h3xg4 Kg7-h6 ± (1.13) Depth: 5/12 00:00:00 4kN 1.Be4-f5 h5xg4 2.h3xg4 Kg7-h6 3.Ke3-e4 Kh6-g7 4.Bf5-d7 ± (1.06) Depth: 6/12 00:00:00 5kN 1.Be4-f5 h5xg4 2.h3xg4 Kg7-f8 3.Ke3-f3 Kf8-e7 4.Kf3-e4 Ke7-d6 ± (1.00) Depth: 7/12 00:00:00 11kN 1.Be4-f5 h5xg4 2.h3xg4 Kg7-f8 3.Bf5-c2 Kf8-e7 4.Ke3-e4 Ke7-d7 5.Bc2-d3 ± (0.97) Depth: 8/14 00:00:00 29kN 1.Be4-f5 h5xg4 2.h3xg4 Kg7-f8 3.Bf5-c2 Kf8-e7 4.Ke3-e4 Ke7-d7 5.Ke4-f5 Kd7-e7 ± (1.00) Depth: 9/16 00:00:00 59kN, tb=3 1.Be4-f5 h5xg4 2.h3xg4 Kg7-f8 3.Bf5-c2 Ng6-e7 4.Ke3-d4 f6-f5 5.g4-g5 Ne7-g6 ± (0.97) Depth: 10/18 00:00:00 92kN, tb=24 1.Be4-f5 h5xg4 2.h3xg4 Kg7-f8 3.Bf5-c2 Ng6-h4 4.f4-f5 Nh4-g2+ 5.Ke3-e4 Ng2-e1 ± (0.94) Depth: 11/20 00:00:01 182kN, tb=89 1.Be4-f5 h5xg4 2.h3xg4 Kg7-f8 3.Bf5-c2 Ng6-h4 4.f4-f5 Nh4-g2+ 5.Ke3-e4 Ng2-e1 ± (0.94) Depth: 12/19 00:00:02 328kN, tb=197 1.g4xh5 ± (0.97) Depth: 12/19 00:00:03 504kN, tb=347 1.g4xh5 Ng6xf4 2.Ke3xf4 f6-f5 3.Kf4xf5 f7-f6 4.h5-h6+ Kg7-g8 5.Be4-d5+ Kg8-h7 ± (0.97) Depth: 13/20 00:00:03 648kN, tb=422 1.g4xh5 Ng6xf4 2.Ke3xf4 f6-f5 3.Kf4xf5 f7-f6 4.h5-h6+ Kg7-g8 5.Be4-c2 Kg8-h8 ± (0.97) Depth: 14/20 00:00:06 1081kN, tb=905 1.g4xh5-- ² (0.66) Depth: 15/21 00:00:09 1737kN, tb=1615 1.g4xh5 Ng6xf4 2.Ke3xf4 f6-f5 3.Kf4xf5 f7-f6 4.h3-h4 Kg7-h8 5.Be4-d5 Kh8-h7 = (0.06) Depth: 15/22 00:00:11 2611kN, tb=1762 1.Be4-f5 = (0.09) Depth: 15/23 00:00:12 2731kN, tb=1863 1.Be4-f5 h5xg4 2.h3xg4 Kg7-f8 3.Bf5-c2 Kf8-e7 4.Ke3-e4 Ng6-h4 5.f4-f5 Nh4-g2 ± (0.88) Depth: 15/27 00:00:15 3658kN, tb=2255 1.Be4-f5 h5xg4 2.h3xg4 Kg7-f8 3.Bf5-e4 Kf8-g7 4.Ke3-f3 Kg7-f8 5.Be4-c2 ± (0.84) Depth: 16/25 00:00:23 5447kN, tb=3759 1.g4xh5 ± (0.88) Depth: 16/25 00:00:28 6876kN, tb=5263 1.g4xh5 Ng6-e7 2.Be4-f3 Ne7-f5+ 3.Ke3-e4 Nf5-g3+ 4.Ke4-d5 Kg7-h6 5.Kd5-d6 Ng3xh5 ± (0.88) Depth: 17/29 00:00:53 15661kN, tb=7082 1.g4xh5 Ng6-e7 2.Be4-f3 Ne7-f5+ 3.Ke3-e4 Nf5-g3+ 4.Ke4-d5 Kg7-h6 5.Kd5-d6 Ng3-f5+ ± (0.72) Depth: 18/29 00:01:16 22561kN, tb=11435 1.Ke3-f3 ± (0.75) Depth: 18/29 00:01:44 31711kN, tb=16444 1.Be4xg6 ± (0.78) Depth: 18/29 00:01:48 32952kN, tb=18506 1.Be4xg6 Kg7xg6 2.g4xh5+ Kg6xh5 3.Ke3-f3 Kh5-h4 4.Kf3-g2 f6-f5 5.Kg2-h2 Kh4-h5 +- (1.66) Depth: 18/29 00:01:56 34631kN, tb=23173 1.Be4xg6-- ± (1.34) Depth: 19/32 00:01:58 35278kN, tb=24280 1.Be4xg6 Kg7xg6 2.f4-f5+ Kg6-g5 3.Ke3-f3 h5xg4+ 4.h3xg4 Kg5-h6 5.Kf3-f4 Kh6-h7 ± (0.88) Depth: 19/33 00:01:59 35504kN, tb=25752 1.Be4xg6 Kg7xg6 2.f4-f5+ Kg6-g5 3.Ke3-f3 h5xg4+ 4.h3xg4 Kg5-h6 5.Kf3-f4 Kh6-h7 ± (0.88) Depth: 20/35 00:02:23 43874kN, tb=30764 1.Be4xg6-- ² (0.56) Depth: 21/37 00:03:01 57976kN, tb=38120 1.Be4xg6 Kg7xg6 2.f4-f5+ Kg6-g5 3.Ke3-f3 ² (0.53) Depth: 21/37 00:03:02 58199kN, tb=39459 1.Ke3-f3 ² (0.56) Depth: 21/37 00:04:21 86950kN, tb=49509 1.Ke3-f3 h5xg4+ 2.h3xg4 Ng6-h4+ 3.Kf3-g3 Nh4-g6 4.Be4-c2 Ng6-e7 5.f4-f5 Kg7-h6 ² (0.69) Depth: 21/37 00:05:01 102008kN, tb=56568 1.Ke3-f3 h5xg4+ 2.h3xg4 Kg7-h6 3.Be4xg6 Kh6xg6 4.f4-f5+ Kg6-g7 5.Kf3-e4 Kg7-h6 ² (0.53) Depth: 22/35 00:07:58 170309kN, tb=82717 1.g4xh5 ² (0.56) Depth: 22/38 00:10:04 219110kN, tb=94001 1.f4-f5 ² (0.59) Depth: 22/39 00:14:38 319074kN, tb=115646 1.f4-f5-- ² (0.28) Depth: 23/32 00:15:43 344152kN, tb=124563 1.f4-f5 ² (0.28) Depth: 23/37 00:16:27 361171kN, tb=127718 (Young, St. 27.02.2000) > >Uri
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