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

Author: Robert Allgeuer

Date: 12:04:56 06/03/04

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On June 03, 2004 at 15:02:41, Andreas Guettinger wrote:

>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


This is without tablebases. Correct?

Robert



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