Author: James T. Walker
Date: 15:02:20 02/13/00
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On February 12, 2000 at 10:18:44, leonid wrote: >Hello! > >Please give your position that contain mate between 4 and 8 moves. Would like to >know the speed at which usually logic solve mates. I did this four years ago, >but then I was alone. Now data could be more diversified and useful for me as >for somebody else. > >Until now positions presented here were almost all the time beyond 9 moves (18 >plies). This make solution too long to find. > >Please indicate your hardware and your game. > >I will give, for start, one very simple position that contain mate in 6 moves. >White to go. > >/1q2kr2/rB2bbp1/3p1n2/1NpP2BN/P4P1p/1P2Q3/6PP/R3K2R/ White to go. > >Thanks for your next position! >Leonid. This is from George Koltanowski's book "TV Chess". It is a mate in 10 with 4 underpromotions to a Knight. It is one of my favorites. I was surprised to find in the late 80's that the Fidelity Champion Sensory Challenger would solve this problem in about 42 seconds. Todays programs will solve this in less than 1 second. [D]7K/P1p1p1p1/2P1P1Pk/6pP/3p2P1/1P6/3P4/8 w - - 0 1 Jim Walker
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