Author: Torstein Hall
Date: 03:19:56 01/21/02
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On January 20, 2002 at 09:41:48, David Rasmussen wrote: >On January 20, 2002 at 09:29:24, Severi Salminen wrote: > >>On January 20, 2002 at 09:01:50, David Rasmussen wrote: >> >>>There must be a value system of material that takes care of all special cases. >>> >>>1,3,3,5,9: >>> >>>Has the following problems: >>>3 pawns for bishop or knight is almost always a bad idea. >>>2 knights/bishops for rook and pawn is almost always a bad idea. >>>2 rooks for queen is often not a good idea. >>>3 knights/bishops for a queens is often not a good idea. Then again, often it is >>>:) >>> >>>What is your best bet? >> >>And sometimes a Bishop is better than a knight. So: >> >>P=1, B>N>3*P, R+P>2*B, Q>2*R and Q>3*B. >> >>So maybe P=1, N=3.2, B=3.4, R=6, Q=13? >> >>Severi > >I don't want to score bishop higher than knight. It depends on dynamic factors >that should be in evaluation anyway. I just want to avoid extra code to evaluate >special cases, as Crafty does. I think it is possible. > >/David Is the Bishop pair a special case? Theyb are better in about 80-90% of all practical games.I think that should score 7p together if a bishp is 3. And perhaps even a score for Queen and Knight that work very well together.... But I guess this is "special case" Torstein
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