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Subject: Re: Practical Tablebases (much smaller) ?

Author: Rafael Andrist

Date: 08:44:23 11/13/01

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On November 13, 2001 at 10:24:25, Dieter Buerssner wrote:

>On November 13, 2001 at 09:18:02, Uri Blass wrote:
>
>>On November 13, 2001 at 09:16:09, Uri Blass wrote:
>
>[snip]
>>>Part of the 7GB is for generating unimportant tablebases of a king and three
>>>pieces against a king when there is no position with king and 3 pieces against
>>>king when programs cannot win.
>
>>I mean no KXXX vs K position that is not drawn that programs cannot win(of
>>course there are stalemate positions).
>
>I agree, that kxxxk are practically useless. However, your above statements may
>depend on how you define "piece", and about the implemented knowledge. If you
>include pawns: KBPPK may be useful for programs, that don't know (well enough)
>about draws with rook pawns and wrong B. Before I have implemented a more
>general rule (with double pawns), my program showed something like +6.x for it
>...

How general is your rule?
[D]7k/8/8/7P/7P/3B1K2/2B5/8 w - - 0 1

Rafael B. Andrist



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