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Subject: Re: Kramer Vs Kramer (Yace + Book against Yace + No Book = 13.5 - 6.5)

Author: Mark Rawlings

Date: 18:24:59 08/30/02

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>my experiments with book/non-book in checkers (usually 288 games per match) say
>the same: at long time controls, the difference is larger, if i look at the
>ratio of wins/losses. in checkers its hard to define what is better - would you
>rather lose a 288 game match with 40-20 or with 10-0? i'd say losing 10-0 is
>worse, although the difference in wins is smaller. with fast time controls, what
>happens is that the error frequency of both programs is high, so even if one has
>a book and regularly achieves comfortable positions, it will lose games because
>it makes errors. at long time controls, checkers programs play close to perfect,
>and then the program with a good book nearly never loses a game, and the
>win/loss ratio goes way up.
>
>aloha
>  martin

Hi Martin-

Slightly different subject here, but in the Las Vegas checkers tournament, your
program lost a few games.  Did you figure out what the losing moves were and
then run cake for a long analysis?  I was wondering if these positions were too
deep for the programs to see.

Thanks,

Mark




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