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Subject: Re: Quiescent Pruning.

Author: Tord Romstad

Date: 09:29:18 10/07/03

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On October 07, 2003 at 08:27:40, Anthony Cozzie wrote:

>On October 06, 2003 at 22:24:18, macaroni wrote:
>
>>What are the usualy ways of pruning the quiescent search. I don't use bitboard,
>>so that cuts out some stuff, and makes a swap function heaps harder. At the
>>moment, I just say a capture is no good if it doesn't increase the score above
>>alpha-margin (50 centipawns for position stuff at the moment). Are there any
>>other simple, or sort of simple ways?
>>Cheers
>
>1. You stepped on a mine here.  Your "I don't use bitboards, because ____" will
>start a huge flamewar.  Mark my words.

He didn't say "I don't use bitboards, because ____", just "I don't use
bitboards".  Hence, no flamewar.  :-)

>2. When you say "swap-off" function, I think you mean a capture evaluator.
>However, there is no reason you can't write a capture evaluator without
>bitboards (actually, there isn't really a good way to do it _with_ bitboards
>IMO).

I agree.  Writing a static exchange evaluator is more or less equally
difficult in all common board representations.

Tord




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