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Subject: Re: strange fritz evaluations

Author: Uri Blass

Date: 04:05:41 04/17/02

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On April 17, 2002 at 06:39:34, Miguel A. Ballicora wrote:

>On April 17, 2002 at 04:12:12, Steve Maughan wrote:
>
>>Martin,
>>
>>>this is the reason i asked - if a program believes this position to be +1.4 or
>>>+2.2, then it will go for this position instead of another promising
>>>continuation. when you analyse games and the computer tells you you should have
>>>played this and won, it's funny and not funny at the same time :-)
>>>talk about comps being GMs...
>>
>>I would say that this is quite an extreme position and a classically tough one
>>for computers to deal with.  Yes it will come up - especially in anti-computer
>>style chess but the code and heuristics to handle this position are not trivial.
>> In general I would say that Shredder is excellent at the endgame and this is
>>just one hole in the evaluation.
>>
>>Regards,
>
>Do the programs avoid Ng4 in this position throwing away black's advantage?
>(I just modified it)
>My program cannot avoid it.
>Miguel
>
>[D]8/1k6/5np1/p1p4p/1pP1p3/1P2PpPB/P1K2P2/8 b - -

My program has no problem here because the only knowledge that it has about pawn
structure is that 2 pawns on the same file is bad.

It has no knowledge about pawn endgames.

A lot of other programs also avoid it(for example Junior7 or shredder5.32)

They do not know like my program that Ng4 is a draw but they know that the score
for black after other moves is better(shredder5.32 says g5 with a score of +2.80
for black after few seconds)

Uri



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