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Deep Thought (Computer)
Number of games in database: 116
Years covered: 1988 to 1994
Overall record: +63 -20 =14 (72.2%)*
   * Overall winning percentage = (wins+draws/2) / total games
      Based on games in the database; may be incomplete.
      19 exhibition games, odds games, etc. are excluded from this statistic.

With the White pieces:
 Sicilian (9) 
    B22 B21 B46 B81
 French Defense (6) 
    C16 C17 C07 C15 C08
 Queen's Pawn Game (4) 
    A45 A40
 King's Gambit Accepted (4) 
    C39 C34
 King's Indian (4) 
    E80 E69 E86
With the Black pieces:
 Sicilian (10) 
    B20 B31 B22 B56 B23
 English, 1 c4 e5 (9) 
    A21 A20 A22
 Queen's Gambit Accepted (9) 
    D21 D20 D25 D23
 Alekhine's Defense (6) 
    B04 B02 B05 B03
 Queen's Pawn Game (5) 
    D02 D05 D00 A45
 Caro-Kann (4) 
    B12 B19 B13
Repertoire Explorer

NOTABLE GAMES: [what is this?]
   Deep Thought vs Igor Ivanov, 1988 1-0
   Deep Thought vs Bronstein, 1992 1-0
   Deep Thought vs Bronstein, 1992 1-0
   Bronstein vs Deep Thought, 1992 0-1

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United States of America

[what is this?]
Developers that joined the teams of Chiptest (Computer) and Deep Blue (Computer) are Andreas Nowatzyk, Mike Browne, Murray Campbell, Thomas Anatharaman, Feng H Hsu and Peter Jansen. While not all of the programmers are still involved with this version, the pages of the preceeding computer players describe other members of the team that are responsible for coaching Deep Thought.

 page 1 of 5; games 1-25 of 116  PGN Download
Game  ResultMoves Year Event/LocaleOpening
1. A Lesiege vs Deep Thought 0-154 1988 Long BeachB02 Alekhine's Defense
2. Deep Thought vs Hitech  1-057 1988 Orlando ACMB04 Alekhine's Defense, Modern
3. Igor Ivanov vs Deep Thought  ½-½44 1988 OhioA22 English
4. M Valvo vs Deep Thought  1-048 1988 corr one move/every 3 daysB03 Alekhine's Defense
5. R Salgado vs Deep Thought  0-134 1988 Long BeachD05 Queen's Pawn Game
6. K Nedved vs Deep Thought  0-143 1988 PittsburghB01 Scandinavian
7. D Lawson vs Deep Thought 0-144 1988 LondonD02 Queen's Pawn Game
8. Sun Phoenix vs Deep Thought  0-146 1988 Orlando ACMA21 English
9. Deep Thought vs Igor Ivanov 1-029 1988 US OpenB01 Scandinavian
10. M Zlotnikov vs Deep Thought  0-151 1988 USAA21 English
11. Deep Thought vs V McCambridge  ½-½47 1988 Long BeachC17 French, Winawer, Advance
12. T Martinak vs Deep Thought  ½-½64 1988 PittsburghD17 Queen's Gambit Declined Slav
13. Sandeep Joshi vs Deep Thought  ½-½42 1988 Boston US OpenA20 English
14. Alburt vs Deep Thought 1-061 1988 10, USA op-BostonD25 Queen's Gambit Accepted
15. Deep Thought vs Compx Challenger  ½-½50 1988 Orlando ACMB22 Sicilian, Alapin
16. Deep Thought vs V Rao  1-040 1988 PittsburghB22 Sicilian, Alapin
17. Larsen vs Deep Thought 0-143 1988 Long BeachA20 English
18. Deep Thought vs R Sprague 1-077 1988 PittsburghB22 Sicilian, Alapin
19. Deep Thought vs Silman  1-057 1988 Long BeachB17 Caro-Kann, Steinitz Variation
20. Deep Thought vs Browne 0-136 1988 Software Toolworks Ch Pittsburgh PA USAB22 Sicilian, Alapin
21. A Ivanov vs Deep Thought 1-040 1988 PittsburghB01 Scandinavian
22. Deep Thought vs D Lucky 1-030 1988 Long BeachC16 French, Winawer
23. Mephisto vs Deep Thought  0-173 1988 Orlando ACMA21 English
24. Deep Thought vs M Valvo 0-148 1988 corr one move/every 3 daysC31 King's Gambit Declined, Falkbeer Counter Gambit
25. Deep Thought vs Fishbein  1-081 1988 Long BeachC69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4
 page 1 of 5; games 1-25 of 116  PGN Download
  REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2) | Deep Thought wins | Deep Thought loses  

Kibitzer's Corner
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Premium Chessgames Member
  PinnedPiece: Artificial intelligence is no match for natural stupidity.
May-13-09  myschkin: . . .

I wish a robot would get elected president. That way, when he came to town, we could all take a shot at him and not feel too bad.

(Jack Handy, American writer and cast member of Saturday Night Live from 1991-2003. Famous for his "Deep Thoughts" comedy sketches)


Premium Chessgames Member
  amadeus: "For each very complex problem in this world, there is a very simple solution.

And it's usually wrong."

-- Occam

Premium Chessgames Member
  whiteshark: Is it cheating if no one sees it?
Premium Chessgames Member
  SetNoEscapeOn: Taken together, tabbed browsing and Wikipedia are both the joy and the bane of all curious minds "suffering" from ADD.
Premium Chessgames Member
  TheFocus: I once dreamed that I would one day become a Grandmaster.

But that dream did not come true, so I dreamed of becoming an International master.

Didn't happen, so I dreamed of just becoming a Master.

Ditto, so I tried to become an Expert.

Something was lacking, so I dreamed of being just a Class I.

Guess what? Nada.

So on and on, until I dreamed of just getting a Class WXYZ rating.

Then I woke up and found out that I had wet the bed.

Jul-17-10  The Famous Chess Cat: <SetNoEscapeOn: Taken together, tabbed browsing and Wikipedia are both the joy and the bane of all curious minds "suffering" from ADD.>

I wholeheartly agree!

Jul-31-10  just a kid: Deep thought...something that is impossible for me to do :)
Feb-14-11  seeminor:

Excellent doco

Feb-14-11  Whitehat1963: It takes a big man to lose a game gracefully. It takes a bigger man to laugh at the loser.
Premium Chessgames Member
  SetNoEscapeOn: "Don't put all your eggs in one basket."

But if one has only one basket...? How many baskets can one carry, anyway?

Premium Chessgames Member
  whiteshark: What we do in life echos into enternity.
Premium Chessgames Member
  whiteshark: What is spare time when time is relative, Albert Einstein?
Premium Chessgames Member
  PinnedPiece: One ponders why the Deep Thought page at CHessgames has only four pages of thoughts.

What makes a thought deep? Is a deep thing desired? A deep valley makes travel difficult, and can separate things...

--- ---- ---- ---

What makes a thought deep? The deepest parts of the ocean are lifeless, oxygen-deprived, canyons of eternal darkness.

--- ---- ---- ----

What makes a thought deep? If you probe into the deepest, furthest recesses of man's physical brain, you enter his reptilian zone.

--- ----- ---- -----

What makes a thought deep? The most common phrase in English for being in a deep place is actually rather unpleasant and foul-smelling: I'm in deep d_ _ d_ _ now!

--- ---- ---- -----

What makes a thought deep? When we view deep space, we are looking at energy that has taken years or thousands of years to reach us. Does a deep thought take years to appear?

--- ----- ---- ----- --- --

What makes a thought deep for a computer? It has piled lots of calls on a recursion stack, and as often as not, if you are not careful, you crash.

---- ----- ----- --- ---- ---

Perhaps deep thinking for me just means pondering questions I can't answer?


Premium Chessgames Member
  SetNoEscapeOn: The regular members of this site are the biggest fans of elite chess in the entire world.
Premium Chessgames Member
  whiteshark: Time is a great teacher, but unfortunately it kills all its pupils...
Premium Chessgames Member
  whiteshark: The road to success is always under construction.
Premium Chessgames Member
  whiteshark: If Atheists are so bad then how come AtheistZilla never attacked Tokyo and Godzilla did?
Premium Chessgames Member
  RookFile: Toykyo needs to have their buildings knocked down every 5 years. It's good for their economy, they get to rebuild them for next time.
Nov-05-12  rapidcitychess: So if we are all nonexistent, and imagining everything, then how did you just tell my that I am imagining everything? Do I know I am imagining things, but I don't actually know?
Premium Chessgames Member
  whiteshark: And now something completely off-topic:

"<Deep Thought> was a computer chess machine built at Carnegie-Mellon University in the 1980's. It was a predecessor to Deep Blue, the chess machine that defeated Garry Kasparov in a match. Neither machine exists at this time.

<Andreas Nowatzyk> was one of the contributors to the Deep Thought project while he was in grad school. A few years ago when he and I [<Tim Mann>] were both working for Compaq's research labs in Palo Alto, Andreas sent me a copy of Deep Thought's evaluation function tuning program and asked me to put it on the Web for him, since he no longer has an interest in computer chess.

If you are interested in this material, you can download it here. Please don't ask me questions about it; I had nothing to do with developing it, and I don't have any information beyond what is on this page.

Explanation written by Andreas Nowatzyk in January 2000.

Code download in tar.gz format. "


Premium Chessgames Member
  diceman: <whiteshark: If Atheists are so bad then how come AtheistZilla never attacked Tokyo and Godzilla did?>

God only knows.

Oct-12-15  Esauwept: I can't find the supposedly well-annotated games between Kasparov and Deep Blue computer. Does anyone know what game collection they are in? Many thanks
Oct-12-15  Howard: There's always the Informant. Otherwise, there's good commentary right here on this website, though (admittedly) you have to wade through a lot of spam-like comments.
Oct-12-15  King Radio: The Pandolfini book on the match is pretty good, and it's pretty cheap.
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