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Subject: Re: What is Wrong with Shredder 7.0.4's Position Evaluations?

Author: Matthew White

Date: 17:42:17 09/12/03

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On September 12, 2003 at 13:26:47, Gian-Carlo Pascutto wrote:

>On September 12, 2003 at 13:06:42, Bob Durrett wrote:
>
>>Ah Ha!  Another example of apples versus oranges!  : )
>
>Again, not at all. You are assuming engine behaviour and comparative
>strength is miracolously completely different in playing vs analysis.
>This is false.
>
>Running in analysis mode is the same as playing a very very slow game,
>as far as the engine is concerned. There's nothing significantly different
>about the two internally.
>
>>In my case, I always allow the engine to reach a "reasonable" search depth. On
>>the other hand, a person playing against his chess program would never do that.
>
>What is reasonable? Why would a reasonable depth magically make things
>different for the sake of this discussion?
>
>>Don't be fooled by SSDF results.  SSDF could care less about the analysis uses
>>of the chess programs.  They ONLY measure playing strength in timed
>>competitions.
>
>There is a direct and very strong correlation between analysis strength
>and SSDF performance.
>
>--
>GCP

The problem with that statement is that it assumes that engines win for the same
reason. In general, the engines that I use for analysis are those with a highly
developed positional understanding. If I make a positional mistake, an engine
that is highly tactical will, more often than not, fail to see the mistake. That
doesn't mean that the engine won't win a great number of games, it just means
that it doesn't analyze the way I'd like my games to be analyzed...



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