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Subject: Re: About search algorithms and heuristics

Author: blass uri

Date: 07:33:42 05/26/00

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On May 26, 2000 at 09:21:01, Josť Carlos wrote:

>  I'm curious about what search algorithms and heuristics do commercial and
>amateur programs use, for example, null move vs no null move, PVS vs MTD(f) and
>so on.
>  In Averno, I use PVS and AS, and haven't tried null move cause I'm a little
>afraid of losing precision in short tactics, though I see most programs use null
>move.
>  Junior is said not use null move. Do any other of you guys or commecial
>programmers not use null move?


I know that Rebel does not use null move(the reason for not using null move is
that Rebel is using other prunning ideas and using also null moves will be too
much).

I read that chessmaster6000 uses null move but I think that it does not use it
in the same way that other programs use it and depth 3/12 probably means that it
does not use null move in the first 3 plies.

Uri



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