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Subject: Re: No, because of null move

Author: Ricardo Gibert

Date: 18:39:19 06/03/02

Go up one level in this thread


On June 03, 2002 at 00:26:35, Uri Blass wrote:

>On June 02, 2002 at 23:51:30, Russell Reagan wrote:
>
>>On June 02, 2002 at 05:37:27, Uri Blass wrote:
>>
>>>Junior does not use a null
>>
>>First, I'd like to know how do you know that? Like if you saw it in a post, or
>>asked the authors.
>
>I remember it from Amir Ban's words.
>
>>
>>Second, do you know what it uses instead of null move? Surely it must use some
>>pruning technique to get such good search depths.
>
>I do not know exactly the pruning techniques that are used by Junior but I know
>that the depth that Junior says is not brite force depth and usually Junior
>search only 1/2 of the depth that is written.
>
>Most moves are considered as depth 2 by Junior based on my knowledge but
>important moves may be considered as depth 1(good captures or threats)
>>
>>Uri, you always seem to know these little factoids about engines, and I find
>>them very interesting. Like how Tiger uses the "filter" pruning technique. That
>>is also very interesting.


Now I'm curious. Just what is the "filter" pruning technique?


>
>I know because I read CCC for years.
>
>Uri



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