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Subject: Re: Position stumps Shredder 6.02 & Fritz 6 but not most others

Author: Roy Eassa

Date: 07:20:45 11/21/02

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On November 20, 2002 at 18:30:54, James T. Walker wrote:

>On November 20, 2002 at 18:14:06, Roy Eassa wrote:
>
>>On November 20, 2002 at 17:00:19, James T. Walker wrote:
>>
>>>On November 19, 2002 at 19:18:55, Roy Eassa wrote:
>>>
>>>>White to move and win.
>>>>
>>>>1q1k4/2Rr4/8/2Q3K1/8/8/8/8 w - - 0 1
>>>>
>>>>Shredder 6.02 and Fritz 6 can't find it; most of the other top engines see it
>>>>instantly.  It's zugzwang, of course; I knew Fritz was susceptible but I'm
>>>>surprised by Shredder.
>>>
>>>Fritz 6 & Fritz 7 find Mate in 33 instantly on my computer.  Maybe you are
>>>missing some tablebases?
>>>Jim
>>
>>
>>I don't use 'em!
>
>Then don't blame the program for making endgame errors. :-))
>It's really hard to ignore perfect knowledge when it's available.
>Jim


The winning line should be trivial for any modern program to *calculate*.



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