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Subject: Re: Openings Book

Author: Uri Blass

Date: 05:02:06 11/17/02

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On November 17, 2002 at 07:27:12, Pavel Blokhine wrote:

>I just created my very own opening book and it contains more than 750,000 games.
>So i was wondering if it's a good enough book or i need to add more games. I use
>Fritz 7.

I do not know how do you decide about the games that you add.
If you check every game manually for tactical errors and correct the errors then
you did a lot of work.
If you do not do it then your book probably have tactical errors.

My books for movei does not include games but only few lines.
There are 2 books (one for white and one for black and the books were generated
manually).

The size of the book for white and for black is very small and is less than 1
kbytes(I was lazy to put a lot of lines in them and in general I do not consider
books as very important for movei and it is better to use the same time to
improve the engine.

I have not the time to look at 750,000 games and look for tactical errors that
should not not be in the book.

Uri



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