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Subject: Re: retrieving the PV from hash questions

Author: Robert Hyatt

Date: 15:33:47 09/06/04

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On September 06, 2004 at 04:47:12, Alessandro Scotti wrote:

>On September 05, 2004 at 22:12:35, Stuart Cracraft wrote:
>
>>I walk the PV until there is no further position. No limit. This can then
>>either be left in the hash table if you don't clear between searches
>>but like Bob, you should keep the PV entries and restore them in the
>>hash table before the next search whether or not you table-clear due to
>>potential changes.
>>
>>I don't do this. It's a simple fix. I don't know why I've delayed putting
>>it in.
>
>I don't either. But since I get my PV from the hash table, it's already there.


It won't _always_ be there .  That is the problem.  You can overwrite a key
position and lose a move in the PV, and hence the _rest_ of the PV will not be
useful.




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