Author: Uri Blass
Date: 14:01:42 07/24/02
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On July 24, 2002 at 16:55:45, Dieter Buerssner wrote: >On July 24, 2002 at 14:39:02, Uri Blass wrote: > >>Movei also does not use values of 1,3,3,9 but >>there is also no single value to pieces. >> >>There are 64 numbers for every piece based on the square >>of the piece. > >In your sense, I could say, that it is the same for Yace. Yace also uses piece >square tables. > >>I do not know what is the meaning of the values of pawns in yace >>(you said that pawn is 0.8 and bishop is 3.5) > >Yes, these are the default material values (not including any piece square table >scores). > >>but my impression is that the values are misleading and the average >>value of pawn is more than 0.8. >> >>Here is a simple example: >> >>Yace believes that 4 pawns are clearly more than a bishop >>and that the difference is more than 1 pawn. >> >>New position >>4kb2/pppp4/8/8/8/8/PPPPPPPP/4K3 w - - 0 1 >> >>Analysis by Yace 0.99.56: >> >>1.h3 >> ± (1.34) Depth: 1 00:00:00 >[etc.] > >Perhaps it is misleading. The positive score comes from the posional score of >the pawn structure, which in this case may seem rather high (3 passed pawns, all >connected). I think, many other engines will give higher positional scores here. There are only 2 connected passed pawns here and even when there are no passed pawns yace show advantage for white(see my other post). Uri
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