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Subject: Re: Fritz 9 vs. Rybka

Author: Uri Blass

Date: 17:08:53 12/05/05

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On December 05, 2005 at 19:44:55, George Speight wrote:

>On December 05, 2005 at 19:23:54, George Speight wrote:
>
>>
>>I am currently running a best of 30 between Fritz 9 and Rybka 32 bit. 40
>>moves/20 min. repeating. 128mb hash, ponder off. Fritz is using his own book,
>>and Rybka is using Perfect 9, as i test programs, not engines. I discussed this
>>with Graham before i started, and he was adamant that Perfect 9 was the book to
>>give Rybka. I told him i would probably get a lot of flak if Fritz won about the
>>book Rybka was using. He said he woudl stand behind me 100% on that. The good
>>news for Rybka is that in the first 3 games he had 2 wins and a draw. The bad
>>news is in the next 8 or 9 games he has only managed one win. It did not take
>>Fritz too long to figure him out. I have watched all the games and analyzed them
>>closely, and Rybka is truly  strong. Does he have a chance to win this match.
>>Not hardly, inmy opinion. He comes out of the openings in great position, but
>>his analysis is suspect. Example: toward the end of the middle game in one he
>>analyzed the position as him being up 3.25. Fritz analyzed it as even. Guess who
>>was right. Rybka never even considered what was coming in any of his lines. It
>>has been my experience that does not bode well for a program in the long run. My
>>thinking is they have a very strong program here, not quite up to the level of
>>Toga, Fritz and Fruit yet. They may have possiibly jumped the gun and put him
>>out too soon without waiting on that next reported update. He has some analysis
>>problems that need to be dealt with. At the expense of possibly starting a holy
>>war, is he strong- yes. Is he the second coming of Christ at this point intime
>>-not hardly. Needs more fine tuning in the middle and end game. I will have the
>>games available for anyone who wants to email me- i will send the complete
>>package to you in a zip. Keep you posted.   George
>Dont get me wrong. i am probably pulling for Rybka. The stronger the free ones,
>the less i will have to spend on the others. It looks like after game 12 which
>is in progrss Rybka will be leading 6.5 - 5.5 The problem is in my opinione his
>analysis is too erratic to win a long match. If i am proven wrong, so be it.

Beating fruit and toga with results like 20-3 or 18-4 when you do not count draw
is very convincing

Rybka lost against Fritz in Sarah's games but 14-11 not including draws is not
very convincing result.

http://www.talkchess.com/forums/1/message.html?467046

If you do not like Rybka's analysis then seeing diagrams and examples may be
productive and I think that getting conclusion from analysis that you do not
like about strength is clearly wrong.

Uri



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