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Subject: Re: How is this possible?

Author: Joachim Rang

Date: 08:48:12 12/19/04

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On December 19, 2004 at 09:28:09, Tansel Turgut wrote:

>Dear Joachim,
>
>It is very interesting. i thought that the engines should get the same
>conclusion, but one might need more time to achieve it.These are mathamatical
>calculations, i thought that they shouldn't change if you change the processor
>speed and the ram etc. (just should take more time)
>
>both computers have single processors running at 256 ram. One has AMD and one
>has an intel processor. program is Shreeder 8 (but i noticed this with junior 8
>earlier also)
>
>best regards,
>Tansel

Yes this are mathematical calculations but nevertheless dependent on a lot of
things. With different hash entries programs make different decisions what to
prune and what to cut, so differences are to be expected. Furthermore there is a
very slight chance of hash key corruption, which can lead to different behavior,
although that should occur _very_ rarely and should not be reproducible. After
all chessprograms are not as deterministic as one might think.

regards Joachim



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