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Subject: Re: Human rating differential compared to Computer vs. computer

Author: Dann Corbit

Date: 18:45:54 01/29/99

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Now, about computers -- how is it that an 1800 program might beat a 2500
program?  Sounds pretty absurd does it not?
There are a large number of possibilities.  For instance, a flaw in an opening
book might cause Mr. 2500 to start off at -6 when it falls out of book.  Or a
bug in the evaluation function might cause a stupid move.  Or someone might get
on the time shared machine and cause the 2500 program to swap to disk for 30
seconds at some crucial time point.  Now, you might think that the bug can be
fixed.  And certainly it can.  But as long as we are developing new ideas new
bugs will spring up.  And you might think that we can fix the opening book, and
indeed, we can tag bad moves as we find them, but with so many possible moves we
will never find them all.  And you might think that "well, when I swapped to
disk, that game did not really count."  But on the ICC database it counts the
same as a game against ferret on the hottest available hardware.

IOW ECC.9:11



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