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Subject: Re: During Null Move search

Author: Robert Hyatt

Date: 05:31:28 06/03/98

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On June 03, 1998 at 02:45:34, Roland Pfister wrote:

>
>On June 02, 1998 at 21:27:57, Robert Hyatt wrote:
>
>>On June 02, 1998 at 17:50:53, Peter Fendrich wrote:
>>
>>>How are you doing things during a Nullmove path?
>>>
>>>I don't:
>>>  - save Princ. Var (of course!)
>>>  - save Killer moves
>>>  - increments the History Killer
>>>  - save positons in Hash tables
>>>
>>>But maybe it's better to save moves in the hash tables during null move
>>>searches?
>>>
>>>//Peter
>>
>>
>>I store hash entries, update the killer/history values, and do
>>*everything*
>>I normally do...
>
>So do I. I just don't allow extensions if a nillmove is in the path.



I do normal extensions and everything else, as I want that null move
search to fail high... and the best way to do so is to follow checks and
so forth to prove that "passing" is really ok, showing that the current
position is good enough that even passing doesn't hurt.



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