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Subject: Re: Free Programs of today are better than Commercial were 3 years ago !

Author: Jorge Pichard

Date: 14:48:16 03/26/04

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On March 26, 2004 at 07:18:09, Uri Blass wrote:

>On March 26, 2004 at 06:17:46, Tord Romstad wrote:
>
>>On March 26, 2004 at 04:43:23, Uri Blass wrote:
>>
>>>I also doubt if history based pruning was used in 1995 or 1999.
>>
>>They date back at least to the early 90s, IIRC.  I no longer remember the first
>>time I read about them, but it's a *really* long time ago.
>
>I never read about them and invented the idea independently.
>Only later I read about it when I read sergei's post.
>
>>
>>>I also doubt if the botvinik extension was used in 1995 or 1999.
>>
>>You're right, it's possible that the Botvinnik-Markoff extension wasn't very
>>common back then.
>>
>>>You also have your ideas for reductions or extensions that were probably not
>>>used in 1995 or 1999.
>>
>>I use mostly static tricks which have been out of fashion for more than 20
>>years.  :-)
>>
>>Tord
>
>I doubt if the programmers of the commercial programs heard about them.
>They were certainly not used more than 20 years ago in the way that you use
>them(otherwise they could be succesful also in programs like Crafty).
>
>Crafty is probably better than gothmog in blitz because you did not do speed
>optimization but based on results that I read it seems not to be the case in
>longer time control.
>
>Uri

Gothmog is not doing so great in blitz G/30 against Fritz 6, after 18 games
Fritz 6 is winning by 13 to 5

Jorge



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