Computer Chess Club Archives




Subject: Re: knowledge and blitz; search and long games

Author: Uri Blass

Date: 00:15:22 02/15/06

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On February 15, 2006 at 03:07:50, Joseph Ciarrochi wrote:

>I have a naive question...
>in my understanding, Fruit has excellent search efficiency but not huge amounts
>of knowledge. In contrast, Fritz 9 and Rybka have substantial knowledge. If you
>can trust Rybka's depth outputs, it does not seem to be as quick at getting to
>deeper plys.

I do not trust rybka depth's output and it can see complicated tactics at depth
1 based on my tests.

>I have observed that Fruit 2.2.1 tends to play poorly at blitz and improve
>steadly with long time controls, with it being an absolute god on the longest
>time controls (SSDF). In contrast, both rybka and fritz 9 play blitz well.
>do programs with more knowledge tend to play blitz better?

I do not think so.
fruit1.0 that has less knowledge was relatively bad at long time control.

I consider the free fruit2.1 to be a program with a lot of knowledge.


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