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Subject: Bitboards and evaluation?

Author: John Coffey

Date: 12:06:32 10/06/98

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It seems to me that you get limited information from  bitboards.  You
can find out if any white pieces attack black pieces and vice-a-versa.

What if you want to know who has the greatest mobility?  (i.e. the most
number of legal moves)  You would have to count bits would you not?
Is there a fast way to count bits by have table look ups?  (i.e.
take 16 bits at a time and look up the bit count in a table?)

If you want to know who controls the most squares around an enemy king then you
would have to count bits again?

If you wanted to know who controlled what squares, then it would seem that
you would be out of luck with bitboards.

John Coffey



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