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Subject: Re: To Mel: you misquoted Dr. Hyatt.

Author: Melvin S. Schwartz

Date: 17:50:59 05/31/99

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On May 31, 1999 at 20:09:57, Dann Corbit wrote:

>On May 31, 1999 at 19:33:28, Melvin S. Schwartz wrote:
>[snip]
>>Hello Dr. Hyatt!
>>
>>Perhaps there is some confusion on what I'm looking for. First, I am not
>>interested in comparing dedicated computers. I am interseted in comparing
>>software programs - commercial software programs like Hiarcs, Fritz,Rebel, etc.
>>I've found at Shep's site he runs tournaments with programs such as listed
>>above, on equal hardware and at various time controls. I also personally
>>believe, and this may be just my opinion of all the members here, that comparing
>>programs on equal hardware is of the utmost importance if one wishes to know
>>which program deserves the consideration as being the best.
>Best in what sense?

Seems I've caused quite a stir with my opinion. I am really tired of it for I
have so many other things to do and responding to this over and over has become
a real bore. However, I will address your concerns as best I can.
>
>>If a program wins a
>>tournament at 40/2 - that's the only time control I'm interested in - then I
>>believe that program at that time should have the honor of being called the
>>best.
>Is this your definition of best?  What about at correspondence chess rates,
>which requires even stronger ability?

I consider 40/2 the ultimate way by which to judge the merit of a program
because that is the time control used in championship matches. When Kasparov or
Karpov play for the title they are playing at 40/2.>

>>As for ratings, I also believe testing programs on equal hardware is the
>>optimum way to achieve the most accurate results.
>What is the mathematical basis for theis claim?

It has been my experience with other people having the same software that with
faster pc's you will get better results from a program. And that means the
program will play better. It is printed in the manual for Hiarcs 7 in reference
to improving Hiarcs strength: "Alternatively, you can purchase a faster PC!" It
is also stated in the manual for Fritz 5.32 that the speed of the software the
program is running on has a great influence on the playing strength of Fritz. It
also states "Obviously a 200 MHz Pentium is going to give you a much better
performance than one running at 133 MHZ. There are other factors as well, but as
you can see, the hardware a program is running on is very important. And that is
why I criticized SSDF for running Hiarcs 6 on a P90 against Nimzo 98 on a P200.
Of course they claim that they are able to compensate for the different speed
and come up with accurate calculations; however, I am not totally convinced of
that. I still feel they're dealing in a hypothehtical situation. At Shep's site
there are tournaments held where all programs are run against each other on the
same hardware. That I believe is the absolute correct way to evaluate programs.

>>I'm glad you responded even though we may disagree on some or all of the above.
>>I would like to take this opportunity to express my sincere apologies at naming
>>you the author of a quote I have used. I guess you can call it a major
>>"BLUNDER". Once again, please accept my apology for making that terrible
>>mistake.
>Everybody makes mistakes.  Owning up to them and moving on is the mark of a true
>lady or gentleman.

Thank you!



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