Author: David Dahlem
Date: 08:44:26 07/27/04
Go up one level in this thread
On July 27, 2004 at 11:10:18, chandler yergin wrote: >There appears to be a serious flaw in the Fritz Program in regard to >positional understanding of some simple endgame positions. > >Example: > > > >[D] 8/7p/4k3/1K4b1/P7/3p3P/8/4B3 w - - 0 1 > >Analysis by Fritz 8: > >1. -+ (-2.06): 58.a5 d2 59.Bxd2 Bxd2 60.a6 Be3 61.Kc6 Kf5 62.Kb7 Kf4 63.h4 h5 >64.Kc6 Kg3 65.Kc7 Bf2 66.Kb8 Kxh4 >2. -+ (-2.06): 58.Kc4 d2 59.Bxd2 Bxd2 60.a5 Ke5 61.Kd3 > > >Hiarchs & Crafty immediately spot it, and show the correct move. > >Congratulations to them! > >BTW.. How does your Engine do? >Good Test Position. > >The above position is from a Correspondence game where both players >must have used Fritz, and followed the Eval. >Black won. > >Both are strong players, who shall remain anonymous, so as not to embarrass >them. >Had they not used Program help, they should have easily seen the correct >Drawing method. >CY [D]8/7p/4k3/1K4b1/P7/3p3P/8/4B3 w - - 0 1 After forcing a5, Ruffian 2.1.0 says its a draw. :-) Ruffian 2.1.0 1 00:00 -0.52 1. ... h6 1 00:00 -0.58 1. ... h5 1 00:00 -2.72 1. ... d2 2.Bxd2 Bxd2 2 00:00 -2.19 1. ... d2 2.Bxd2 Bxd2 3.a6 3 00:00 -2.29 1. ... d2 2.Bxd2 Bxd2 3.a6 Ke5 4 00:00 -1.97 1. ... d2 2.Bxd2 Bxd2 3.a6 Be3 4.Kc6 5 00:00 -2.53 1. ... d2 2.Bxd2 Bxd2 3.a6 Be3 4.Kc6 Ba7 6 00:00 -2.52 1. ... d2 2.Bxd2 Bxd2 3.a6 Be3 4.Kc6 Ba7 5.h4 7 00:00 -2.16 1. ... d2 2.Bxd2 Bxd2 3.Kb6 Be3+ 4.Kb7 Kf5 5.a6 Ke4 6.h4 8 00:00 -2.23 1. ... d2 2.Bxd2 Bxd2 3.Kb6 Be3+ 4.Kc6 Ke5 5.a6 Bd4 6.Kb7 Ke4 9 00:00 -2.39 1. ... d2 2.Bxd2 Bxd2 3.Kb6 Be3+ 4.Kc6 Ke5 5.a6 Kf4 6.Kb7 Kg3 7.a7 Bxa7 8.Kxa7 10 00:01 -2.24 1. ... d2 2.Bxd2 Bxd2 3.a6 Be3 4.Kc6 Kf5 5.Kb7 h5 6.a7 Bxa7 7.Kxa7 h4 8.Kb6 11 00:01 -2.24 1. ... d2 2.Bxd2 Bxd2 3.a6 Be3 4.Kc6 Kf5 5.Kb7 h5 6.a7 Bxa7 7.Kxa7 h4 8.Kb6 Kf4 12 00:02 -2.59 1. ... d2 12 00:02 -2.93 1. ... d2 2.Bxd2 Bxd2 3.a6 Be3 4.Kc6 Ke5 5.Kd7 Bf2 6.Kc7 Kf4 7.Kd6 Kg3 8.h4 Kxh4 13 00:05 -2.58 1. ... d2 13 00:06 0.00 1. ... d2 2.Bxd2 Bxd2 3.Kc4 Bxa5 4.Kd3 Kf5 5.Ke2 Kf4 6.Kf2 Bd8 7.Kg2 h5 8.h4 Bxh4 14 00:14 0.00 1. ... d2 2.Bxd2 Bxd2 3.Kc4 Bxa5 4.Kd3 Kf5 5.Ke2 Kf4 6.Kf2 Bd8 7.Kg2 h5 8.h4 Bxh4 9.Kh1 15 00:24 0.00 1. ... d2 2.Bxd2 Bxd2 3.Kc4 Bxa5 4.Kd3 Kf5 5.Ke2 Kf4 6.Kf2 Bd8 7.Kg2 h5 8.h4 Bxh4 9.Kh1 Bf2 16 00:47 0.00 1. ... d2 2.Bxd2 Bxd2 3.Kc4 Bxa5 4.Kd3 Kf5 5.Ke2 Kf4 6.Kf2 Bd8 7.Kg2 h5 8.h4 Bxh4 9.Kh1 Bf2 10.Kg2
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