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DEEP THOUGHT

Last updated on Sun, 08/05/2007 at 4:17pm.

Once the strongest chess playing computer in the world.  It searched  approximately 2 million chess positions per second.  Deep Thought became the first computer to defeat a grandmaster in tournament play by defeating Bent Larsen at the 1988 U.S. Open.  Deep Thought tied for first place in the U.S. Open with Tony Miles.  Deep Thought became the world computer champion in 1989 and defeated David Levy in a match later that year.

It was a precursor to Deep Blue, the computer that defeated Kasparov in the 1997 match.

Comments:

by chess_master13 - 12 months ago
Canada
Member Since: Jul 2007
Member Points: 14
interesting
by notsogoodatchess - 12 months ago
Everberg,Belgium Belgium
Member Since: Aug 2007
Member Points: 12
wow. That's one clever computer. I wonder how it did so?
by Royd - 11 months ago
Philippines Philippines
Member Since: Aug 2007
Member Points: 107
how i wish i can calculate 2 million chess positions per second!!!
by Garfeild17 - 11 months ago
england,UK United Kingdom
Member Since: Aug 2007
Member Points: 6

Cool!I want to try to beat it!

 

by Logicalfan10 - 10 months ago
Wantirna South, VIC Australia
Member Since: Sep 2007
Member Points: 131
I wonder if someone can beat the DEEP THOUGHT?
by eyesallhazy - 10 months ago
NC United States
Member Since: Sep 2007
Member Points: 8

Try eletromagnets.


by Kasparov_1989 - 10 months ago
lobya Palestine
Member Since: Oct 2007
Member Points: 211

it was not a good day when Kasparov was beaten by deep blue..... I felt there was a conspiracy!! Anyway i still believe Kasparov is the best there is!!


by chessnoob1997 - 9 months ago
San Francisco United States
Member Since: Nov 2007
Member Points: 123
omg that's so cool!!! The Deep Thought searches for a ton of moves and calculating the blunders...eventhe really minor ones...that's obvious. You could never beat it.
by delta5ply - 9 months ago
brooklyn ny United States
Member Since: Sep 2007
Member Points: 137
how does one apply to play it ed
by daveydoo_000 - 9 months ago
Kingsville Canada
Member Since: Oct 2007
Member Points: 1
A computer can certainly calculate every possible move, but i don't think that a computer can realistically develop a "strategy" yet. Seems that a computer will ultimatly optimize their position at the time being and perhaps a few moves in advance; however, with no long term objective I would give the advantage to the one with a strategy. Kasparov defeated Deep Blue three times and they drew twice.
by Chessmaster1213456 - 8 months ago
New York City American Samoa
Member Since: Dec 2007
Member Points: 5
big
by ojosazules619 - 8 months ago
Buenos Aires Argentina
Member Since: Dec 2007
Member Points: 13
Kasparov beat Deep Thought.  When Deep Blue later defeated Kasparov, it is widely theorized that perhaps the computer had help from its human programmers.  That, and the fact that Kasparov was not allowed to see any of Deep Blue's previous games, while the programmers of Deep Blue had access to hundreds of Kasparov's.  Truly an unfair fight.
by Snookslayer - 8 months ago
Orlando, Florida United States
Member Since: Nov 2007
Member Points: 26
One of the disadvantages facing Kasparov was that Deep Blue had analyzed several of Kasparov's prior games and was specefically programed to beat Kasparov.  When Kasparov requested the data of Deep Blue's prior games, the programers refused.  That doesn't quite seem fair.
by nikkodabest - 8 months ago
california United States
Member Since: Dec 2007
Member Points: 3
i never knew there was a computor after deep blue. thanx XD
by lithium11 - 8 months ago
Wellington New Zealand
Member Since: Dec 2007
Member Points: 243
The late game.
Deep Blue [white]
Kasparov [black]


by moodragonx - 6 months ago
United States
Member Since: Jan 2008
Member Points: 79
On a fairly unrelated side note, "Deep Thought" was the name of the computer in the Hitchiker's Guide to the Galaxy that computed the answer to life, the universe, and everything. (The answer was 42)
by Fixbits - 6 months ago
Hungary
Member Since: Dec 2007
Member Points: 1
You should read Artificial Intelligence, A Modern Approach by Russel, Stuart and Norvig, Peter. The book is quite easy to read and it can help you understand how AI like Deep Blue are working. I recommend you the topics covereing search and planning.
Regards, Fb

by Nathan210 - 5 months ago
Utah United States
Member Since: Mar 2008
Member Points: 1
I think Deep Blue is now calculating drug effects in cells for Pharmaceutical companies.
by drew_kennon - 5 months ago
Shadyside United States
Member Since: Mar 2008
Member Points: 20
Deep Blue is amazing
by drew_kennon - 5 months ago
Shadyside United States
Member Since: Mar 2008
Member Points: 20
Deep Blue is amazing
by pcfilho - 3 months ago
Rio de Janeiro, RJ Brazil
Member Since: Jul 2007
Member Points: 185

Deep Blue only beat Kasparov because it was especifically designed to play against Kasparov, based on hundreds of the grandmaster's games.

 

And it still needed help in one of the moves... 


by devildog971 - 3 months ago
Linton, IN United States
Member Since: May 2008
Member Points: 1

Deep Blue has looked at so many positions it is impossible to beat


by AClotfelter - 3 months ago
Colorado Springs United States
Member Since: May 2008
Member Points: 16
In the 1997 match, Kasparov beat Deep Blue in game 1, Deep Blue won in the infamous game 2, they drew 3, 4, and 5, and Blue won the 6th and final game for the match (3 1/2 to 2 ½). Deep Blue isn't doing anything right now, half of it is on display in the Smithsonian, the other half was retained by IBM. Deep Blue would not have been an ideal machine to do anything other than play chess... specifically against Kasparov. It was created and designed to beat him, having played no other human or computer in any other public matches prior or since (There was a previous “Deep Blue” that played and lost to Kasparov the previous year, but it bore little resemblance to the machine that beat him).   ---    The hardware consisted of 2 IBM RS/6000 supercomputers tied together and incorporated almost 500 specialized chess-specific microchips. The hardware was capable of analyzing aprox 200 million positions per second. On top of this was a software package designed and implemented by a team of computer scientists and GMs (most notably Joel Benjamin), who designed the software specifically to beat Kasparov. The machine was aware of many, if not all, of Kasparov's previous games. Before, during, and after the games the machine was kept in a locked room, inaccessible to anyone but IBM staff.   ---   Kasparov openly questioned the secrecy surrounding Deep Blue, going so far as accusing IBM of cheating. He demanded the log files for Deep Blue after game 2, where the computer played brilliantly, following a blundered game 1. Kasparov specifically charged that game 1 played like a computer, and that game 2 played as if a human was involved. IBM refused to release the logs, but promised to turn them over at the end of the match (they were, in fact, not released until 3 years later).   ---   There is no actual evidence to support the accusation that IBM cheated with Big Blue. The computer was running a highly custom chess engine, specifically designed to beat Kasparov, so it should be expected that it would not perform as he expected a computer to play. In-between each game, the machine was re-tooled and adjusted to compensate for weaknesses displayed in previous games.   ---  

 Despite all of this, there is reason to believe that IBM may have intervened with a "grandmaster in the back room" to help assist the machine. IBM's total secrecy with the machine meant that nobody could see into the room where the machine was playing from, and there was no way to verify that humans were not involved. Even if you could see into the room, there was no way to verify that a human was not interfaced with the machine remotely, verifying or assisting its moves. The delay in releasing the logs also seems suspicious, but there is no way to prove that they were tampered with in the 3-year period between the match and their release.   ---  

In addition to this, Kasparov was not allowed to view or examine any records of previous games that the computer had played. All previous matches were played in secret against various players, reportedly including GMs.   ---   

When it was over, IBM immediately retired Deep Blue, and would not permit a re-match.


by BEGINnerCHESS - 32 days ago
Adelaide Australia
Member Since: Jul 2008
Member Points: 8

This Deep Thought must have been specifically designed to play against Kasparov to be able to beat him. But ... it was interesting to see how Kasparov lost a game.

I highly doubt I will EVER make it to his level, years of learning or otherwise. Besides, I lose about the majority of my chess games anyhow.

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