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Subject: Re: Will the "incomplete" 6 man tablebases be able to play a game correc

Author: Robert Hyatt

Date: 20:48:57 10/21/02

Go up one level in this thread


On October 21, 2002 at 21:34:12, John Merlino wrote:

>On October 21, 2002 at 18:31:50, Dieter Buerssner wrote:
>
>>On October 21, 2002 at 00:00:42, Terry Ripple wrote:
>>
>>>I heard talk that if you don't have the complete set (all pawns) with pieces,
>>>that it could very well do worst for the program than do better for it, is this
>>>at all true? I'am especially interested in the 6 men as i have all the complete
>>>5 men and now would like the 6 man, but i hear that it's not complete as yet!
>>
>>All available 6-men TBs are pawnless. In this case, you don't have to fear an
>>problems. The typical problems arise, when there is a pawn, that must be
>>promoted, and the TB with the promoted pawn is missing. This however can not
>>happen with the available 6-men TBs. You need the 5-men TBs, so that after any
>>possible capture, a TB position will be found.
>>
>>Regards,
>>Dieter
>
>I'm pretty sure that Marc Bourzutschky is in the process of creating 6-man files
>with pawns for Chessmaster 9000. I have no idea how long they will take, nor do
>I know which files he's planning on building first....
>
>He posted a thread here which showed his build times for quite a few 6-man
>files, but the only one I remember was 29 hours for KQQKQQ, and I don't remember
>the CPU either :-(
>
>jm


29 hours sounds incredibly fast, since it is going to require at _least_ 100
iterations to find
most of the draws...



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