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Subject: Re: Genius Series

Author: Thorsten Czub

Date: 13:50:45 05/19/01

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On May 19, 2001 at 16:37:55, John Dahlem wrote:

>On May 19, 2001 at 16:08:30, Dana Turnmire wrote:
>
>>  Does anyone know why Richard Lang has not kept his highly acclaimed Genius
>>program updated as it seems the other top programmers have?
>
>
>Because after Genius 3 it only got slightly weaker every version.

why ?!

IMO

1. the null move algorithm made it possible for OTHER programs to come
deep, and maybe even deeper than genius. so they outsearched it.

2. the team of richard (especially OSSI) was not open for new ideas.

3. the way genius worked produced boring style, it computed all moves
in the opponent plies, and computed a selection of only a few good branches in
the own plies. this lead to a playing style where it is not always using and
playing the BEST move, but it will of course not oversee threads by the
opponent.
by reducing the search tree genius came deep, but the asymetrical search
handicapped genius when all the others came deeper due to null-move.




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