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Subject: Re: Attack Tables

Author: Vincent Diepeveen

Date: 06:28:19 06/26/01

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On June 25, 2001 at 13:25:08, Robert Hyatt wrote:

>On June 25, 2001 at 12:56:26, Artem Pyatakov wrote:
>
>>I have decided to keep track of attack tables in my program, because I think
>>they will save computation time in the eval.
>>
>>My question now is this, given the experience of most people in this group, what
>>is the most useful info to keep in the attack table?
>>
>>Should I just keep the number of times that white is attacking the square and
>>black is attacking the square? Or is it very useful to keep track of what actual
>>pieces (and on what position on board) are attacking the square on both sides?
>>
>>Or is it some other kind of attack info?
>>
>>Thanks for all of your responses.
>
>
>If you are going to do this, the "counts" are pretty useless.  You need to
>know which pieces are attacking a square.  IE if I have two pawns attacking
>the square and you have a rook and queen attacking the square _I_ control it.

They are pretty useful in fact in many cases in DIEP.

In crafty eval is so just a few pages, so i can imagine you don't want
to generate this info as you can use it nowhere in eval!

Best regards,
Vincent




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