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Subject: Re: Hashtables and iterative deepening (question)

Author: Rafael Andrist

Date: 07:59:08 05/13/02

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On May 13, 2002 at 09:43:03, Vladimir Medvedev wrote:

>
>> - did you check the key with a non incremental verification function?
>
>Yes, I have checked it and compared incremental and non-incremental variants
>carefully. Captures, en passants, promotions and castling are processed
>correctly :)
>
>> - do you store things like
>>     a) bound
>>     b) depthleft to search
>>     c) score of search
>
>I store the following set of data in each hash entry:
>
>* full 64-bit key
>* depth
>* entry type (alpha, beta or exact eval.)
>* evaluation

Are you sure you store the remaining depth? Check also if you handle this
correct when using extensions.

For move ordering combined with Iterative Deepening, you may also store the best
move.

regards
Rafael B. Andrist



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