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Subject: Re: Questions about SEE and attack tables

Author: John Boyd

Date: 23:58:27 05/13/03

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On May 14, 2003 at 02:31:29, Tim Foden wrote:

>On May 13, 2003 at 22:02:21, John Boyd wrote:
>
>>Hi,
>>
>>I have a TSCP-based engine (TRACE) and want to replace mvvlva with SEE and
>>attack tables. It just has to be better... doesn't it?
>>

<snip>

>I think you'll find that most engines that use SEE don't actually use attack
>tables.  Crafty, that you mention above, is one of them.  Green Light is
>another.
>
>For an example implementation of a SEE in a non-bitboard program, look at the
>code in Sjeng (the free version of course).
>
>It may be a good idea to implement one thing at a time, so try a SEE first, and
>if that works for you, you could try speeding it up in variious ways (of which
>attack tables may be one way).
>
>Cheers, Tim.

I looked at the Sjeng code and it looks pretty costly to calculate on the fly.
But that just underlines how much work is saved by getting better cutoffs... i
guess.

Thanks for your comments Tim.







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