Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Here are some results from the latest (semi-private) RYBKA Beta v Fr

Author: Vincent Lejeune

Date: 01:23:46 12/13/05

Go up one level in this thread


May be because of margin error, I tend to don't believe matchs between 2 engines
if they last less than 100 games. How many did you play ?


On December 13, 2005 at 02:51:35, Ed Murak wrote:

>On December 13, 2005 at 02:16:50, Chrilly Donninger wrote:
>
>>One conclusion of my experiment is: Rybka seems to be fairly tuned against
>>Shredder.
>
>
>Actually, I see the opposite.  RYBKA (latest) has more problems versus Shredder
>9 than against another "obvious" leader, Fritz 9.
>
>Games: 40/40+40/40+40
>Opening book: Fritz9.ctg for both, clean
>Hash: 512 Mb each
>PC: Intel 3600+ Mhz, 32-bit OS
>EGTBs: Full 3/4/5 EGTBs (+ some 6 ones, but Fritz9 I think doesn't look at
>these)
>
>Note this is the RYBKA without proper endgame knowledge still, and without EGTB
>access at all.
>
>The result so far is:
>
>Rybka (beta4, 32 bit)  v.   Fritz 9
>   +8     =3     -1
>
>That is 79.1%, with a TP of +231 ELO, even without endgame tweaks and EGTB for
>RYBKA.  Basically F9 isn't making it into the EG with both legs attached too
>often.  :)
>
>Performance vs Fruit 2.2.1 is almost as high, >75% which I believe could have
>been thought impossible.
>
>Of course, here 12 is far too small a number of games.
>
>I may post in CCC the results and of course all the PGN when more games
>are played.
>
>But this (Fritz 9 and Fruit 2.2.1 results against RYBKA b4) runs a little
>contrary to Chrilly's (possible) conclusion of special RYBKA v. Shredder tuning,
>maybe.  Unless when Shredder comes back round the loop for a match, RYBKA scores
>90% or something!  :)



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.