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Subject: Re: How do you know?

Author: Terry McCracken

Date: 13:15:38 02/25/01

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On February 25, 2001 at 11:20:28, Uri Blass wrote:

>On February 25, 2001 at 11:02:55, Pete Galati wrote:
>
>>On February 25, 2001 at 10:17:53, Uri Blass wrote:
>>
>>
>>Now that you mention it, I don't know.  But I have always heard that SMP
>>programs don't do as well as the non SMP versions on single CPU computers.
>
>I did not hear it.
>
>Chessbase claims that Deep Fritz has knowledge that Fritz6 does not have and the
>fact that Deep Fritz is an SMP programs proves nothing because you can choose
>the number of proceessors to use.
>
>Deep Fritz is not similiar to Deep Junior when I read that you cannot choose the
>number of processors to use and in this case Deep Junior is slower than Junior6.
>
>I know that the ssdf test Deep Fritz on one processor and they do not do it with
>Deep Junior.
>
>The reason is clear.
>There was no point in testing Deep Junior on a single CPU when nobody claimed
>that it is stronger than Junior6 but there is a point in testing Deep Fritz on
>single CPU because we need to know if deep fritz is better.
>
>I know that testers like Enrique claimed that Deep Fritz is better than
>Fritz6a(Enrique claimed about 20 elo better).
>
>You can see also Deep Fritz's good result against nimzo8 in the ssdf games so I
>guess that Deep Fritz is going to be number 1 in the next list.
>
>Uri

I have tested Fritz6e against Deep Fritz, it was a short match only 28 games but
Deep Fritz won by a single game in 28, which leads me to believe the difference
in strength on a _Single_ cpu is very very low. As you stated Uri, 20
points, that is'nt much.
I also noticed Deep Fritz often likes to swap down to an endgame and this has
backfired on Deep Fritz, as it plays the endgame I feel only marginally better
than Fritz6e, in some cases not as well!

If you want or actually need Deep Fritz over Fritz6e then you would be wise to
buy a dual cpu or even up to 8 if your budget allows, for such a beast.

On a duel cpu I'd wager it's between 50 and 60 ELO points, stronger than a
single. As you increase the number of cpu's it will continue to rise but more
slowly, maybe 8 cpus it would rise up 150 rating points. Maybe?

Terry McCracken



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