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Subject: Re: Tablebases Again

Author: Robert Hyatt

Date: 19:44:27 10/09/98

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On October 09, 1998 at 22:29:18, Roberto Waldteufel wrote:

>
>On October 09, 1998 at 20:21:50, Robert Hyatt wrote:
>
>>On October 09, 1998 at 18:05:18, Bruce Moreland wrote:
>>
>>>
>>>On October 09, 1998 at 17:33:07, James T. Walker wrote:
>>>
>>>>Is there a practical use for tablebases like the KBKN or KBKB etc. ?  Am I
>>>>making a mistake by not using all the available tablebases ?
>>>>Jim Walker
>>>
>>>Those are probably not important.
>>>
>>>If you use something like KP vs K, make sure you have KQ vs K, or you might
>>>experience strange behavior as the program might forget that it should promote.
>>>
>>>bruce
>>
>>
>>Crafty won't even probe things like KB vs KN, it has what Ernst would call
>>an "interior node recognizer" that classifies such positions as draw,
>>without needing to do a probe of any kind.  So if using Crafty, you can
>>delete those..., although you would need them to construct other
>>databases...
>
>Hi Bob,
>
>These are certainly drawn for practcal purposes, but mate positions do exist, so
>classifying these as draws without any testing for this could on rare occasions
>overlook a silly mate in one. Do you test for this in Crafty?
>
>Roberto


nope... KB vs KB == 0.00 in crafty, period...
ditto for KN vs KN, KNN vs K, KNN vs KN, etc..



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