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Subject: Re: Cray Blitz - Ratings of the past false? Or are Current ones false ??

Author: Mark Young

Date: 17:03:50 07/26/99

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On July 26, 1999 at 19:23:01, John Wentworth wrote:

>After Cray Blitz won the 1983 World Computer Chess championship it's rating was
>2153. The Cray supercomputer from that time is still much faster than today's
>PC's ever dreamed of being yet Cray Blitz's rating was much lower than todays PC
>programs. In another post here, Robert Hyatt mentioned that Cray Blitz would
>beat Crafty based on hardware. So I guess my conclusion here is that either the
>rating of 2153 back in 1983 for Cray Blitz was way off or the estimated rating
>of Crafty and other current PC's are way off. In my opinion, Cray Blitz running
>on a Cray Supercomputer would still blow away any of the current programs
>running on any PC today. I guess I have to think that the rating of 2153 was WAY
>off. Any other opinions?

Bob can correct me if I am wrong, but was not this rating based on games played
against humans, or computers that had ratings playing humans. If I remember
right, I think there was a prize for the first computer to achive and hold a
master rating playing humans of 2200 which I think Belle won. So I think the
rating may be pretty close to accurate because of this fact.



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