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Subject: Re: Van Wely-Fritz 1-0

Author: Christophe Theron

Date: 17:41:55 05/14/00

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On May 14, 2000 at 19:35:06, Bruce Moreland wrote:

>On May 14, 2000 at 18:01:45, Pete R. wrote:
>
>>I agree, and forgive my ignorance, but isn't this largely a matter of evaluation
>>tuning?  It's impossible to see tactically the consequences of these kingside
>>pawn advances until it's too late, so this has to be compensated by positional
>>evaluation just as a human does.  Any human player can look at the late
>>positions and conclude that black has no counterplay as a direct result of
>>white's annexation of kingside space. I'm not saying this would be easy to
>>program, but in theory a perfect evaluation function would have the computer
>>*appearing* to play according to planning, and thwarting the planning of its
>>opponent.  No?  And isn't pawn structure a major part of eval functions?  Such
>>things are beyond tactical evaluation, but modern programs obviously still have
>>a hard time seeing that white can create such a favorable structure within a few
>>moves. Once the tactical realizations sink in it's far too late.  Pawn structure
>>patterns are easy for us humans to evaluate, but obviously this is still a
>>computer eval problem.
>
>No matter what you do you can still get brutally smashed.  It is possible for a
>human to reach a position where the computer has no counterplay and just turn
>the screws until the computer is dead.  There are other ways it can happen, but
>this one was a good example of a common way.
>
>It is very embarassing to be on the computer side in a game like that, and I'm
>trying to defend Frans.  My own thing has played games like this, and so has
>everyone else's.



That's right. You can also add mine on the list... :(


    Christophe



>It's a failure of long-term planning.  Computers are great at short-term
>planning, and they fake the long-term planning.  All of them do.  Sometimes
>their shortcomings are exposed.
>
>bruce



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