Author: Vasik Rajlich
Date: 02:40:02 02/12/04
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On February 11, 2004 at 17:16:00, GuyHaworth wrote: > >When I was taught chess, pre-history now, the piece values were: > >Pawn = 1 (without loss of generality) >Bishop = Knight = 3 >Rook = 5 >Queen = 10. > >These figures may not be 'current thinking' so feel free to correct me there. > > >However, my question is this. If piece-values are assumed to be dependent only >on the force on the board, what values should they be given for various forces >in the endgame? > > >g This is a very badly-explored topic - although the commercial programs surely have their own secrets. In my program, a piece is worth 3.75 pawns with all pieces present, and 2.75 pawns with all pieces missing. (Everything is scaled linearly in between - the extremes are of course impossible.) A rook gains in value as pawns are traded (1/8th of a pawn for each pawn pair), while a knight loses in value (1/16th of a pawn). For a very good scientific article on this top, do a google search for "Larry Kaufmann", he wrote an article on this topic targeting computer chess programmers, you will find some interesting data there. Vas
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