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Subject: Re: How to use hashtable for bishops?

Author: Pham Minh Tri

Date: 15:56:05 12/09/01

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On December 09, 2001 at 18:04:59, Matthias Gemuh wrote:

>On December 09, 2001 at 17:55:43, Pham Minh Tri wrote:
>
>>On December 09, 2001 at 10:37:30, Robert Hyatt wrote:
>>
>>>On December 09, 2001 at 06:21:37, Pham Minh Tri wrote:
>>>
>>>>Someone told me that he used hashtable for bishops, but I do not understand how
>>>>to do (unlike pawns, I found there was too little information to save for
>>>>hashtable). Could someone explain to me or show me where to download the source
>>>>code. Many thanks in advance.
>>>
>>>
>>>You could, in theory, use special purpose hash tables for any evaluation
>>>component that is costly to compute.  The danger is that this can become
>>>very memory-intensive...
>>
>>Yes, but how? :)
>
>
>Score batteries, pins, discovered checks, good/bad bishops, pairs, etc. :).

Thanks, I undertand more. But could you explain more about pins and discovered
checks? I think those factors concerns to many other pieces, not only bishops,
so how to separate, compute and store them in hashtalbe?

An other question: I know the mobility of bishop is expensive to compute, but I
don't know how to save it in hashtable. Could anyone shed more light on this?
Thanks.




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