Author: Vasik Rajlich
Date: 06:03:21 12/31/03
Go up one level in this thread
On December 30, 2003 at 22:04:02, Toni wrote: >I'm thinking about the values of pieces for a chess program. I have investigated >some engines and the values they give to pieces vary. Some examples are: > >ENGINE knight bishop rook queen >Faile 1.4.4 3.1 3.25 5 9 >Amy-0.8.4 3.5 3.5 5.5 11 >Crafty-19.4, 3 3 5 9 >Beowulf-2.2 3.2 3.25 5 9.3 (defult personality) > >I have to give values for my program and, as I'm not a strong chessplayer I >would like to know your opinion. Are these differences important? What values >should be assigned for the highest strength?. The same could be applied to score >bonuses, but the list is too large. :-) > >Thanks > >Toni Rybka uses Kaufman's values almost exactly. Only exception: 1/16th of a pawn bonus for Q+N v Q+B with nothing else on the board. J. Watson also covers this imbalance in his book "Secrets of Modern Chess Strategy" and claims that there is no evidence to suggest that Q+N are better (Kaufman agrees), but I just can't believe this. One other thing I am starting to grow suspicious of is that BB v NN are not any better than BB v BN. (As Kaufman claims) Vas
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