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Subject: Re: Junior's opening book question

Author: Thorsten Czub

Date: 16:11:54 02/05/00

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On February 05, 2000 at 19:02:01, blass uri wrote:
>I do not understand the reason for counting games
>I think that a good opening book should include only moves and probabilities

we have the same for CSTal.
reason is that you can either select: popularity or strength
as a criteria for book-move-ordering.
if chosen popularity, cstal plays the moves that got the most
games played out.
if chosen strength, cstal also looks for the results of the games and
put's them in relation (that gives a probability e.g.).


>number of games is not relevant.

depends. when you have melted your book out of cbf/pgn data
and there is only ONE game it is very risky that you
sould follow this line.


>I understand from this stupid rule of at least 2 games that if boris alterman
>found a good move and there are no games or only onr game with this move then
>Junior will have to calculate instead of playing the good move of alterman from
>book.

right. but what shall I do about it ?
it's THEIR problem.
they had the right lines in book, but junior chose wrong moves due to the
MINIMUM-GAMES rule !

maybe they should change this when they got a special book edited
by a grandmaster.

>Uri



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