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Subject: that is excellent news for rybka and for us chess players! I

Author: Joseph Ciarrochi

Date: 11:54:44 01/17/06

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Great results. What are time controls?

It may be that rybka does not improve against fritz9 from original beta, but
does improve against other engines.

Here are my very preliminary results with 40/4 repeated blitz. Various rybka
betas playing fruit 2.2. using noomen test set

rybka beta 10d                10-14
rybka 10d (optimistic)       8.5-14
rybka beta 1                   8-14
rybka beta 10d(ultrasolid    7.5-13

I'll wait till n gets to 100 for each engine and report back.

Jim could you keep giving us regular updates on your tournment (i envy the fact
that you have two good computes that you can dedicate to chess play)

+30 if it holds, would be a great improvement in only two months

best
joseph




On January 17, 2006 at 14:13:48, James T. Walker wrote:

>On January 16, 2006 at 22:18:00, James C. Logan wrote:
>
>>On January 16, 2006 at 20:04:37, Joseph Ciarrochi wrote:
>>
>>>I just finished some testing between the betas. It was 4 min with 2 sec
>>>increments on a decent pentium. Nooman test set. Default paremeters.  All games
>>>were versus fritz9. There seems to be no significant differences, but it is
>>>critical to not infer too much, given n size is still small and this was against
>>>only one engine.
>>>
>>>best
>>>Joseph
>>>
>>>
>>>
>>>Rybka beta 1      58-42
>>>Rybka  9b          59.5-40.5
>>>rybka 10d          56 - 44
>>
>>Interesting - my feeling is that 10d is slightly weaker against Fritz 9 than
>>Beta 1 was, and that it is a bit stronger against Fruit 2.2.1. I have a database
>>(Chessbase format) with 47 games Rybka 10 vs. F9, and 100 games Rybka 10d vs.
>>Fruit 2.2.1. All games at time controls 4'/40+4'/40/+4'. Rybka 10 and 10d with
>>defaults except using adaptive mode. F9 and Fruit using their own books, Rybka
>>using Perfect 8.32.
>>
>>Scores - +15/-14/=18 vs. F9 , +37/-23/=40 vs. Fruit 2.2.1
>>
>>I will email the .cbv to anyone who wants it.
>
>My first impressions of 10d was that it was no better than the rest.  Now after
>about 350 blitz games it is leading all other Betas by at least 30 Elo in my
>"Rybka only" database.  It's all the Rybka versions vs Fritz 8/Shredder
>9UCI/Fruit 2.2.1/Toga II 1.1/Junior 9 and Chess Tiger 2004.  The games are all
>with ponder on and each program has it's own cpu.  This program looks very
>strong to me.
>Jim



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