Author: William Bryant
Date: 13:00:38 11/29/99
Go up one level in this thread
On November 29, 1999 at 14:59:59, Robert Hyatt wrote:
>On November 29, 1999 at 14:28:46, William Bryant wrote:
>
>>On November 29, 1999 at 14:20:19, Vincent Diepeveen wrote:
>>> if( nullmovescore >= beta ) {
>>> StoreHash(alfa,beta,nullmovescore,depth);
>>> return(nullmovescore);
>>
>>I missed this in your reply, so let me ask it again
>>
>>Is there any advantage / harm in storing the value as:
>> StoreHash(alfa, beta, nullmovescore, depth-1-R);
>>
>>ie. in storing the value at the searched depth rather than
>>the current depth.
>>
>>William
>>wbryant@ix.netcom.com
>
>
>There is plenty wrong with it. IE if you reach this position at the same depth
>somewhere else, you will look it up, not be able to fail high (depth is too low
>in the table entry) so you do a null-move search (again) that does fail high.
>
>You just wasted a bunch of time doing so...
Thank you,
Sometimes you get so caught up in the details, you need someone to point out
the obvious....
William
wbryant@ix.netcom.com
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