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Subject: Re: For Bob Hyatt Wcrafty18.3 reverse score sign in analysis

Author: Robert Hyatt

Date: 07:14:47 02/13/01

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On February 13, 2001 at 04:03:34, John Hatcher wrote:

>Think I need to be more clear about when this "reverse score" problem occurs.
>It only occurs during engine match play.  It does not occur in infinite analysis
>mode.  In infinte analysis mode the sign ( +-, -+, +=, etc.) will be correct.
>
>However, if Crafty-18.3 is playing another engine in a match under the Fritz6
>GUI, the score valuations will be the reverse of the obviously intended
>valuation. ( -+ 7.50 instead of the obviously correct +- 7.50 ).
>
>I do not think this is a Fritz6 GUI quirk - this problem did not occur when
>using version 17 with Fritz6.
>
>Hope that's a bit more clear.
>
>John


It is almost certainly a bug in the Fritz GUI which is taking the score from
crafty's output and then inverting it, not paying attention to the fact that now
all scores are already from white's perspective.  It works fine in xboard and in
a text window.



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