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Subject: Re: Dream Program: AI Master Level Annotator. Possible?

Author: Ralf Elvsén

Date: 03:56:07 07/04/00

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On July 04, 2000 at 04:28:36, blass uri wrote:

>On July 04, 2000 at 02:34:55, Steve wrote:
>
>>On July 03, 2000 at 18:49:14, Torstein Hall wrote:
>>
>>>I'm not so sure that Junior will give better analysis than Fritz 5. They are
>>>both fast searcher with about the same level of pos. knowledge. Anyway I feel
>>>that all the programs give most tactical variations anyway, even Hiarcs 7.32,
>>>considered among many as the most positional engine.
>>
>>I agree.  Hiarcs 7.32 is great, but its strength (just like every other
>>engine's) is tactics.  Its analysis of endgames is often horrendous.
>>
>>>
>>>I rather go for Crafty! Its free, has more chess knowledge than most of the
>>>programs and runs as a native chessbase engine!
>>>
>>>Torstein
>>
>>A number of people have made the same observation in this forum.  But whenever I
>>play Hiarcs 7.32 against Crafty (running as ChessBase engine) -- generally at
>>either G/30 or G/60 -- Hiarcs wins easily.
>
>The only game that I played Hiarcs7.32 against Crafty17.11 at 3 hours/40 moves
>Crafty won and my observation was that hiarcs has a bug at time control that is
>longer than G/30 or G/60 and this is probably the main reason that it failed in
>the ssdf list.
>
>The bug is in playing and hiarcs could probably be a better program in
>tournament time control if it knew to clear its hash tables after every move
>because learning from previous search is bad if it is done in the wrong way.
>
>Uri

I think you are too quick to draw conclusions. This "strange-moves-from-
Hiarcs-that-can't-be-reproduced-by-others-bug" is well known, but how
frequent is it? I have observed plenty of long time control games by
Hiarcs 7.32 and it is very seldom I suspect this to happen. But who knows?
I guess one would have to look carefully at every game afterwards. My
personal quess is that keeping the hash tables is better, but I have
no "proofs" .

As to the strength of Hiarcs and Crafty, I have my own firm opinion
but it is "unscientific" and I'll keep it to myself :)

Ralf



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