Author: Ray MacFadyen
Date: 04:05:19 07/27/99
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On July 27, 1999 at 00:17:44, Robert Hyatt wrote: >On July 26, 1999 at 20:03:50, Mark Young wrote: > >>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. > >Actually it was based on neither. Ken had a rating program... He computed the >rating of Belle at 2200 based on it's USCF rating at the time of 2208. Most >of the rest were assumed to be 2000, for no particular reason. The numbers in >the crosstable are just TPR numbers... > >another case of taking a "rating estimate" as "the absolute rating"... If crafty had a FIDE rating of 2450,for comparison purposes what rating could cray blitz achieve running on the latest cray avalable ? Yours sincerely Ray Macfadyen
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