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Subject: Re: Chess error in Guiness Book of Records

Author: Robert Hyatt

Date: 11:21:24 07/03/02

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On July 03, 2002 at 13:39:19, Dann Corbit wrote:

>On July 03, 2002 at 12:37:12, Albert Silver wrote:
>
>>On July 03, 2002 at 12:32:13, Peter Hegger wrote:
>>
>>>Hello,
>>>I have the 1998 edition so maybe it has been corrected by now.
>>>Here is a quote from the book.
>>>
>>>'IBM's Deep Blue supercomputer was the first computer to beat a human chess
>>>grandmaster in a regulation game when it played Garry Kasparov in Philadelphia,
>>>USA in 1995...'
>>>
>>>Bent Larsen, among others, lost to computers in regulation time earlier than
>>>1995.
>>>Regards,
>>>Peter
>>
>>Heck, Mchess beat GM Christiansen in a regulation game prior to 1995 on a 486 if
>>I'm not mistaken.
>
>From:
>http://www.geocities.com/SiliconValley/Lab/7378/comphis.htm
>
>"In 1977 Michael Stean became the first grandmaster to lose to a computer; it
>was a blitz game."

Correct.  This was at the 1977 WCCC in Toronto, Canada.  The program was
(obviously) chess 4.7 on a CDC cyber 176 computer, searching 2300 nodes
per second.



>
>"In 1988 Grandmaster Bent Larsen became the first GM to lose to a computer in a
>major tournament - the American Open."


Correct again.  This was vs Deep Thought in a 40 moves in 2 hours traditional
game...



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