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Re: [Bug-gnubg] new contact net

From: Joern Thyssen
Subject: Re: [Bug-gnubg] new contact net
Date: Tue, 10 Jun 2003 11:13:18 +0000
User-agent: Mutt/1.4.1i

On Tue, Jun 10, 2003 at 11:47:39AM +0200, Nis wrote
> --On 10 June 2003 09:21 +0000 Joern Thyssen <address@hidden> wrote:
> >A 0-ply luck analysis cost 21 0-ply evaluations, which is the same as a
> >0-ply chequerplay decision requires in average (assuming an average of
> >21 legal moves per roll). The cube analysis costs one 0-ply evaluation.
> >
> >However, assuming you do a 2-ply chequerplay analysis the picture is
> >totally different. Assuming you, on average, analyse two moves on 2-ply
> >for each roll, you'll have close to 900 0-ply evaluations per roll for
> >the chequerplay analysis. The cube analysis is another 441 0-ply
> >evaluations, so the 21 evaluatiosn for the luck analysis is nothing
> >compared to 900-1350 needed for the cube and chequerplay analysis.
> And furthermore, most (all?) of these evaluations will be cached from 
> previous 2-ply evaluations - right?

Yes, most likely. 

Also, the luck analysis performed before the move analysis, so
technically it's the chequerplay analysis that benifits from the cache.


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