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Subject: Re: Just another custom CM personality...

Author: David Dahlem

Date: 15:02:19 07/03/00

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On July 03, 2000 at 13:09:45, Kar Yung Tom wrote:

>Hi!
>
>I've been working on my own personality and it has been doing pretty good.  It
>has beaten CMQueen++ many times.  But the number of games is far too lacking to
>make any conclusions.  During my tests, the time control was 40 moves in 2
>hours.  I'm not sure if this personality works well in faster time controls.  I
>still have to make little changes.
>
>CMExtra(based on Max)
>
>A/D = -10
>S = 100
>R = 0
>MSD = 20
>SS = 10
>CD= -0.7
>Transposition table on
>Deep thinking on
>
>M/P = 10
>CC = 185
>M = 100
>KS = 120
>PP = 110
>PW = 85
>
>(for both sides)
>Q = 10.0
>R = 5.1
>B = 3.3
>K = 3.0
>P = 1.0
>
>See ya,
>Eric

I just happened to notice these piece values are almost identical with the ones
obtained by Dan Homan in his EXChess TDLeaf evaluation test, so maybe these are
the ideal piece values.  Here is part of his post of a few days ago.
<Quote>
My code is still messy and there are some issues I still need to work on.  With
that said, I did try it out on the piece values in my program. I started the
values at

PAWN = 100  (fixed)
KING = 10000  (meaningless, so learning should not affect it)
KNIGHT = 0
BISHOP = 0
ROOK = 0
QUEEN = 0

and played a 100 game, 1 0 lightning match against GNU-chess.  After the match,
the parameters were at

PAWN = 100
KING = 10000
KNIGHT = 296
BISHOP = 327
ROOK = 508
QUEEN = 997
<unquote>
Dave



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