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Subject: Re: Genius still alive in blitz (for Christophe T)

Author: Fernando Villegas

Date: 19:33:43 05/02/00

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On May 01, 2000 at 20:17:03, Christophe Theron wrote:

>On May 01, 2000 at 17:41:21, Bertil Eklund wrote:
>
>>
>>Played on 2 AMD450 K6-2, auto232 no problem at all. 5min blitz.
>>
>>Nimzo7.32-Genius6.5  35-27 (62)
>>Hiarcs7.32-Genius6.5  43,5-30,5 (74)
>>
>>Not so bad!?
>>
>>I believe that Hiarcs and Nimzo is about 200 elo stronger than Genius6.5 in
>>2h/40.
>>
>>Bertil
>
>
>I completely agree that this is not too bad, and I also agree that the
>difference is bigger at long time controls.
>
>But as you know, Bertil, there was a time when such an experiment would have
>been considered as unfair for its opponents, as Genius was standing well above
>the pack in blitz.
>
>It would be interesting to replay the matches at 2min/game. I'm sure there is a
>point where Genius outperforms its opponents.
>
>In my opinion, and I apologize if this is a bit technical, Genius performs less
>well at long time controls because of its Effective Branching Factor.
>
>That means that Genius is less effective than other programs in pruning out
>moves in deep trees. The complexity of its tree grows more than the complexity
>of other top chess programs trees. The difference gets bigger and bigger with
>increasing depths. I think this could be shown by measuring the times needed to
>complete searches of increasing depths, and by plotting the times of Genius and
>the times of other chess programs.
>
>Anyway I like a lot the Genius programs. They have very stable evaluation
>functions and their search is still efficient at fast time controls. I still use
>Genius 5 as a sparring partner for Tiger from time to time, and I have bought
>the Palm version of Genius.
>
>Great program, a legend I would say. Any computer chess lover should have at
>least one version of Genius in his collection.
>
>
>
>    Christophe

Hi Christophe:
You are right, but... what a pity! To become a legend is something like a first
class funeral. Yeah, when a program is part of a "collection" and not part of
your current crop of used stuff, nothing rest but maybe a word or two of
farewell and a drop of tears. Hope I am wrong and one of these days Lang will
surprise all of us with something to get, not to collect.
Fernando



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