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Subject: Re: How do your program search of all plys? Identical way?

Author: leonid

Date: 14:31:04 08/03/00

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On August 03, 2000 at 14:14:38, Tom Kerrigan wrote:

>I have 3 search functions:
>
>root_search()
>search()
>quiesce()
>
>The first two are almost identical, except root_search has some extra stuff for
>the root of the search tree.


What exactly is the root search? Have the impression that we have identical way
of searching. If we start search, for instance, 8 ply deep and our search goes
down to the ply 1, so ply one is root ply? I have those plys 1 and two that are
different.


>Quiesce is not important to you, as you have no inclination to do a quiescence
>search.
>
>So yes, my program basically searches all plies the same way.
>
>In the endgame, my program usually searches between 800k and 1.1M NPS. (Pentium
>III/800)

Never reached this in my program.

Tom, do you have some special program, that you can send to me, and that will
permit me to send back here one doubtful position in graphics.

I stroke one strange position that brought me initially to try it in few
different ways. One was by homogeneous plys search and one by usual. All the
time the same result. But my move is different from found by one leading
program. Would like to find if some bug is in my program, or just two solutions
have sense. My program say that two moves are different in almost one pawn
value.

Thanks in advance,
Leonid.



>-Tom



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