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Subject: Re: Do the ply zero and one indentical to every other ply?

Author: Robert Hyatt

Date: 12:55:21 12/26/99

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On December 26, 1999 at 15:26:13, leonid wrote:

>Hi!
>
>Do the ply zero and one written in identical way, like all other plies in usual
>chess game?
>
>Recently glanced rapidly though the description of one good chess game that is
>freeware. Found that this game, that was indicated to me as "usual one", have
>reusable procedures for all the plies, if I understood correctly. So my question
>is: Do all the plys use the same procedure and because of this they are
>identical? In my logic not only ply zero and one use special procedure for
>speeding the logic but even three plys over have some special writing. Beyond
>this, everything is the same with the exception of two upper plys.
>
>Thanks for response!
>Leonid.

I don't.  I do ply 1 separately, because I sort the moves differently. For
normal plies, moves are removed from the move list as they are searched.  For
ply=1, I don't want to do this..  You will see a SearchRoot() in Crafty that is
different from Search().



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