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Subject: Re: SEE Function

Author: William Bryant

Date: 15:16:26 03/31/00

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On March 31, 2000 at 15:44:04, KarinsDad wrote:

>On March 31, 2000 at 15:14:32, James Robertson wrote:
>
>[snip]
>
>>Look at Crafty. It has a beautiful SEE function. I believe it was borrowed from
>>the programmers of COKO who developed that particular algorithm. You'll have to
>>talk to Dr. Hyatt for details though.
>>
>>James
>
>I did do that. However, I did not have the time to investigate it to the nth
>degree and I could not quickly find out what I wanted to know, hence, the reason
>for the question here on the message board.
>
>KarinsDad :)

I don't know if Fathom is bitboard based or not.  It took the ideas presented
in Crafty's bitboard implementation of SEE and wrote one for Screamer which uses
a mailbox approach.  It is not as computationally 'free', but the improvement in
move ordering I think is worth the expense.

I will email you the code if interested.

It is the same ideas without the advantage of bitboard ease of move selection
and generation.

William
wbryant@ix.netcom.com




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