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Subject: Re: Crafty 19.13 bug? Mate in 1 position evaluated as draw

Author: Andreas Guettinger

Date: 12:02:41 06/03/04

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On June 03, 2004 at 14:48:55, Robert Allgeuer wrote:

>
>In the following endgame position Crafty 19.13 (I have tried both the compiles
>by Slater Wold and Dann Corbit) analyses this as a draw with score 0.00. Crafty
>19.6 on the other hand correctly detects the mate in one.
>
>Winboard, hash 96 Mb, Athlon 2400+, all 5 piece EGTBs installed.
>
>[d]8/6P1/8/8/2b5/8/p1k2p2/K7 b - - 0 90
>
>Robert

Crafty v19.13

White(1): ponder off
pondering disabled.
White(1): setboard 8/6P1/8/8/2b5/8/p1k2p2/K7 b - - 0 90
Black(1): go
end-game phase
              clearing hash tables
              time surplus   0.00  time limit 22.50 (3:30)
              depth   time  score   variation (1)
              time=0.00  cpu=100%  mat=-4  n=282  fh=100%  nps=10K
              ext-> chk=8 cap=0 pp=0 1rep=0 mate=0
              predicted=0  nodes=282  evals=117  50move=0
              endgame tablebase-> probes=0  hits=0

Black(1): f1=Q#
0-1 {Black mates}
              time used:   0.01
White(2):


regards
Andy



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