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Subject: Re: Asymmetric eval and analysis mode in xboard

Author: Robert Hyatt

Date: 07:06:18 03/19/00

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On March 19, 2000 at 08:44:53, Andrzej Nagorko wrote:

>Hello,
>
>  I have a question about what xboard engines that have asymmetric eval do in
>analysis mode? Do they clear hash table after every move or they search assuming
>engines side is fixed? (i.e. think for side that was on move when analysis mode
>was entered). I prefer second option but this may be misleading, because I get
>different results in analysis mode and real games. What does your program do?
>
>Best wishes,
>Andrzej.



Two things:  In my case (crafty), I disable most of the asymmetry for obvious
reasons.  But I do clear the hash table when crafty 'changes sides' as there is
still a little bit of asymmetry in the eval, enough that it would cause some
inconsistencies without clearing hash.



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