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Subject: Re: EGTBs

Author: James Robertson

Date: 13:07:57 09/03/99

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On September 03, 1999 at 08:03:46, frank phillips wrote:

>I thought I had understood how to implement Eugene's EGTBs, but may have been
>overly optimistic.
>
>The databases are registered and return a number which seem to vary consistently
>according to my perception of how many moves to mate in simple KRRk endings, but
>in actual play against GNUChess in a KNBk ending the pieces just dance around
>until a draw by 3 rep.  So I must have messed up the conversation to my programs
>mate scoring.
>
>The database returns numbers up to 127, -126. Are these ply or moves?  Is the
>score from the perspective of the side to move - whoever has the most pieces?
>
>Apologies for the simple questions but I could not find the answers in the
>documentation.
>
>Frank

You're not alone in having problems with the mate conversions; I had a heck of a
time trying to convert the scores to my mate value. Eventually I succeeded and
the pieces still danced around until I fixed several bugs in my search.... it is
possible that is where your problem is.

James



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