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Subject: Re: Stuffing the PV

Author: Robert Hyatt

Date: 13:12:46 12/06/00

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On December 06, 2000 at 15:52:47, David Rasmussen wrote:

>On December 06, 2000 at 14:02:55, Scott Gasch wrote:
>
>>>Even more important... as you stomp down the pv path, don't forget to
>>>increment the depth just as you would for a real search down that path.
>>>IE checks, recaptures, etc...  and as you go a ply deeper, decrement
>>>depth accordingly.
>>>
>>>Otherwise you will have _lots_ of fun debugging.
>>
>>Actually right now in StuffPV I am saving PV nodes in the hash with an EXACT
>>hash entry and the score returned by Search but with a depth of zero IF the node
>>already in the hash at that position is not the PV node (i.e. it got clobbered).
>>
>>I know that someday I need to correct this and make the depth into search_depth
>>- ply + extensions or whatever... but for now the goal for right now is just to
>>get these moves ordered first and back in the hash.
>>
>>Thanks,
>>Scott
>
>If Bob means the same thing as you, then I'm confused. Because he doesn't do
>that in Crafty. Correct me if I'm wrong.


I store 0 for the draft in crafty for _all_ PV nodes.  I was answering the
question based on how I would store a _real_ draft for PV nodes.  I don't
see any benefit to doing this...



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