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Subject: Re: my solution

Author: Francesco Di Tolla

Date: 03:28:00 10/31/03

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On October 30, 2003 at 14:32:08, Gian-Carlo Pascutto wrote:

>Hi,
>
>I don't understand why ChessMaster is allowed to use a Kure book (general.ctg)
>in the SSDF testing.
>
>Last time this happened (with Gromit) it was specifically said by Alex Kure
>that it was _not_ allowed to use the Fritz books to test anything other
>than Fritz. So why is ChessMaster using it now? Did Kure give permission
>(which I seriously doubt)?
>
>IMHO using the ChessBase learner for ChessMaster is also very questionable.
>

If the original book cannot be converted, my solution to this problem is very
simple:

1 - prepare a book for the engine (not letting other companies to have access to
it) by building a book with a selection of GM games
2 - disable book learning (if not supported by the engine, which would require
own book use also, so always the case if the CB GUI book is used)
3 - use a setting to induce a high spread of the book moves usage (for this
engine only), so that the effect of learning of the opponents will not induce a
(meaningless) sequence of games in the same line, still opponents can take
occasional advantage of book learning


notes:
- step one could be done by someone independent from any company or SSDF and the
step should be repreated for each engine needing a book, building a somewhat
different book (to avoid entering in the learned patterns of another previous
engine with no book). In this step there should be no (deep) book-cooking
selecting moves to be played or avoided, besides may be up to an establised
move, which could be say 10 half-moves.

- step 3 might look questionable, but to cope with the problem, it looks as the
minimal impact I can figure out to avoid giving anybod any advantage.

regards
Franz





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