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Subject: Re: Crafty. How to make it stronger?

Author: Didzis Cirulis

Date: 07:10:08 02/13/98

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>When you say "out of book at an early stage" this sounds like either you
>have a broken book, or a technical problem of some sort.  The large.pgn
>files produce a book that should not miss many opening plans by the
>opponent.  If you can post an example, I can check it against the same
>book built on my P6.

You are right. I found it out when used the option "show book". I saw
almost nothing. Problem was in .gz file format and is solved by now.

>If you are playing at fast time controls, Crafty won't do well on that
>machine, because the shallow search depths will result in a signficant
>number of null-move failures.  Longer time controls will help.  But to
>make it play better, you need faster hardware.  It's designed to run at
>P6/200 speeds, and the null-move search (and everything else) is going
>to perform best at that speed or faster.


>the games.  If you are running both programs on one machine, forget it.

But just for the "scientific interest" and some work I have to do, I do
it. And I have to admit that Crafty is much better now. It looks good!
In a game against Genius 2, 40 moves in 2 hours,it is pressing to win!
It is searching appr. 10 - 11 halfmoves deep while Genius does it at
level 7-19. (And that all simultaneously with Winword, Pegasus Mail
program and Netscape opened.)Sure I do understand that any chess program
would run better on separate PC .
 I have ordered Fritz 5 and, before I receive it, I want to make Crafty
as good as possible.

Didzis Cirulis

BTW there are a lot of computers here at my work.  :-)



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