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Subject: Re: tablebases vs. evaluation

Author: Steffen Jakob

Date: 07:43:35 08/11/03

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On August 11, 2003 at 10:32:53, Uri Blass wrote:

>On August 11, 2003 at 10:08:22, Steffen Jakob wrote:
>
>>On August 11, 2003 at 01:40:11, Harald Faber wrote:
>>
>>// ...
>>
>>>This is the same topic as with mating with knight+bishop. Implement or not while
>>>the tbs solve it.
>>>As a programmer I wouldn't waste my time implementing already solved and
>>>available (!) knowledge.
>>
>>In general it´s not available everywhere, because most engines restrict the
>>tablebase access in the search tree. E.g. they may not access the tablebase
>>behind a certain search depth or e.g. in the qsearch. Therefore it makes sense
>>to implement knowledge even if there are tablebases available.
>
>I do not see how that knowledge can help for KBN vs K that is the example that
>eas given.

He was also talking about "already solved and available knowledge". I thought it
was obvious that I didn´t have KBNK in mind. KRPKR is a good example.

Greetings,
Steffen.

>You are right about other endgames like KRP vs KR because knowledge which
>endgames are draws can help but in KBN vs K all programs gives the stronger side
>a winning score so knowledge how to win the game is not important for the final
>result if the engines use tablebases.
>
>Uri



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