Author: Robert Hyatt
Date: 07:13:32 02/13/01
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On February 13, 2001 at 03:36:32, John Hatcher wrote: >Dear Mr. Hyatt, > >Wcrafty-18.3 is reporting the reverse of the score value during analysis and >match play. For example, if White is clearing winning the game, with a score of >+- 7.50, Wcrafty-18.3 (as Black) will show a value of -+7.50 (that Black is >winning!) This same reverse valuation appears for all score values, large or >small, and it's clearly not just a difference of valuation between two engines >-not with values like +-7.50 and -+7.50 Can you give me some sample output? Crafty _always_ shows +=good for white, -= good for black since version 18.0... IE the scores are always displayed with respect to white's being + and black's being -. > >I have tried this with a number of positions where the advantage is large and >obvious, and Crafty reports the opposite valuation. Of course, this may just be >a "printout" bug, not a valuation bug. > >I noticed this same bug in earlier versions of Crafty-18. This "bug" was not >present in version 17 when using the Fritz6 GUI. > >System: Celeron 333mhz, 96MB, using Fritz6 GUI. > >Regards, >John Hatcher
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