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Subject: Re: Opening, Middlegame, Endgame (for authors)

Author: Fabien Letouzey

Date: 09:41:35 06/17/04

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On June 17, 2004 at 12:34:43, Uri Blass wrote:

>I still did not implement your interpolation but I think to change it to have 2
>different numbers for white and black accept cases when both sides have equal
>material when I can skip the calculation of the second number
>and I may have something like:
>//valpieces[0]=value of white pieces not pawns.
>//valpieces[1]=value of black pieces not pawns.

>phase[0]=calculatephase(valpieces[1])
>if (valpieces[0]==valpieces[1])
>phase[1]=phase[0];
>else phase[1]=calculatephase(valpieces[0]);

>Uri

Hi Uri,

As I mention in another post, I consider using 1 or 15 interpolation
parameter(s) are the same idea.  I also justify why I use only one while not
recommending others to do so.

What seems important to me is that there is no clear definition of "phase"
(which I suspect is what most engines are using).

Fabien.




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