Author: Jaime Benito de Valle Ruiz
Date: 17:56:00 10/07/03
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On October 07, 2003 at 19:58:29, Jeremiah Penery wrote: >On October 07, 2003 at 18:48:30, Slater Wold wrote: > >>[D]r2br1k1/1b1n2p1/p2pp1Pp/qp6/3BPP2/P1N5/1PPQ4/1K1R1B1R w - - >> >>This game can be over in ~10 moves. >> >>Can you find Bxg7? > >This is a modified Crafty that isn't extremely well tuned. I haven't made any >changes in a long time, and it often overvalues attacking chances. >Nevertheless, sometimes it produces good results. :) > > depth time score variation (1) > 1 0.00 3.47 1. Bxg7 > 1-> 0.00 3.47 1. Bxg7 > 2 0.00 ++ 1. Bxg7!! > 2 0.00 4.18 1. Bxg7 Kxg7 2. Qxd6 Surely if you tune an engine properly it'll find "amazing" moves now and then (esp. when the King's safety is at stake) by over-rating the chances of an attack. But, what about the rest of the games? I've managed to configure lots of engines to find extremely hard sacrifices... but after several games, their overall performance become clearly much worse than normal in normal games! I just find it estrange that most commercial engines such as Fritz, Shredder or Junior (to name three) can’t see anything within a minute, but your version has no problems at all finding it in almost no time!!! If it shows a more consistent behavior, I want a copy!! Otherwise, it's not an useful result Regards, Jaime
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