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5-0 and 5-2.Deep_Thought_I_Board.102645419.HSU.lg.jpg

Deep Thought,
was a computer chess machine built at Carnegie Mellon University in the 1980's, the predecessor to Deep Blue. The project was initially started 1985 as Chiptest by the computer science doctoral students Feng-hsiung Hsu and Thomas Anantharaman. Murray Campbell, former co-developer of HiTech, joined the ChipTest team a few month later - followed by Andreas Nowatzyk, Mike Browne and Peter Jansen. The program was named Deep Thought after the fictional computer of the same name [1] .
Deep Thought I - circuit board [2]


5-0 and 5-2.Deep_Thought_Team_1988.102645336.HSU.lg.jpg
Murray Campbell, Feng-hsiung Hsu, Thomas Anantharaman, Mike Browne and Andreas Nowatzyk,
after winning the Fredkin Intermediate Prize for Deep Thought's Grandmaster-level performance. [3]



Photomask of the move generation chip, a combinational logic 8x8 array [6]


View into Deep Thought's source written in C with gotos [7]

See also


Forum Posts


1990 ...

2000 ...

External Links


  1. ^ The Hitchhiker's Guide to the Galaxy from Wikipeadia
  2. ^ Deep Thought I circuit board ca. 1988 Photo by Feng-hsiung Hsu from The Computer History Museum
  3. ^ Deep Thought team with Fredkin Intermediate Prize 1988, Gift of Feng-hsiung Hsu from The Computer History Museum
  4. ^ Hans Berliner (1989). Deep Thought Wins Fredkin Intermediate Prize. AI Magazine Volume 10 Number 2, pdf
  5. ^ Aegon Tournament 1990; Hitech best overall by Hans Berliner, rec.games.chess, May 25, 1990
  6. ^ from Kasparov versus Deep Thought 1989 documentary, Video 2, 10:49
  7. ^ from Kasparov versus Deep Thought 1989 documentary, Video 2, 13:35
  8. ^ Karpov vs. DEEP THOUGHT Cambridge, Massachusetts reported by Darren Bedwell, Compuserve 73
  9. ^ CeBIT, Hannover 1991 - 365Chess.com Tournaments
  10. ^ 12. IJCAI 1991 and Deep Thought vs. Darryl Johansen 1-1, Sydney, August 28, 1991
  11. ^ Deep Thought vs. Darryl K. Johansen from chessgames.co

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