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Subject: Re: original versuses newest rybka. How much improvement? can fruit catch?

Author: Vasik Rajlich

Date: 10:14:49 01/15/06

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On January 14, 2006 at 17:15:39, Joseph Ciarrochi wrote:

>Hi folks,
>
>I am just wondering how much improvement vasik has managed from the original
>beta and the newest beta (please post anything you have). My initial tests
>against fritz 9 show (4 min 2 sec increment); noomen openings):
>
>rybka beta 10 37  -     22
>rybka beta    35.5 -  23.5
>
>
>(this tourni still going, will post final results soon.)
>
>My guess is vasik has maybe improved rybka by 30 points (please present any data
>you have since this is truley guessing.)
>
>I am not sure that adding endgame knowledge will lead to big improvement. Maybe
>a half point here or there, but i could be wrong. Maybe 20 point boost?
>
>Let's say the February release of rybka gets a total of 50 points improvement.
>This will give it about a 90 point advantage over fruit, based on the CEGT. If
>fabien keeps improving fruit as he has in the past (see
>http://www.fruitchess.com/playing-strength.htm),  then fruit could very well
>catch rybka in the next release.
>
>
>I really like the way Fruit 2.2. plays. It offers you very solid advice and
>seems to understand opening play quite well (will post data on this soon). In
>playing style, it seems very different from rybka and thus forms a nice
>complement to this monster fish.
>
>
>best
>Joseph
>
>ps. did fabien ever offer an explanation about why on earth he called his
>program fruit.

Actually, I am surprised that nobody has run a huge match to test Beta 10 vs
Beta 1. Ok, I've run this match now - but my data is secret :)

As for Fruit 3.0 in March - my wild guess is 100 ELO points.

Vas



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