Deep Blue defeats Kasparov

Event record

Event date

May 3, 1997 – May 11, 1997

Timeline date

Event date

Verification

Sources gathered automatically · September 27, 2026

Lines

• Search and reasoning
• Evaluation
• Compute

ID

evt-0056

• IBM
• Garry Kasparov

Sources

• primary Ancient game, modern masters (press release of 1 May 1997)

  IBM Research (Deep Blue match site, archived copy) · Published May 1, 1997

• primary Game 6 report of 11 May 1997

  IBM Research (Deep Blue match site, archived copy) · Published May 11, 1997

• secondary Deep Blue

  IBM

Related events

Earlier

• Enables Deep Blue wins a game against Kasparov 1996links to this record

  The 1996 match is the earlier, lost round of the same contest.

  • Deep Blue · IBM
• Related Chinook becomes world champion 1994links to this record

  The first world title held by a machine, three years before Deep Blue's win.
• Enables Hsu's chess chip: from ChipTest to Deep Blue 1986links to this record

  The 1997 Deep Blue had 480 chess chips, and the move generator in each, by its authors' paper, derives from the Deep Thought move generator, the chip of 1985-1986.

  • Deep Blue (Murray Campbell, A. Joseph Hoane Jr., Feng-hsiung Hsu), authors' preprint dated 1 August 2001 of Artificial Intelligence 134 (2002) 57-83 · Authors' preprint (hosted on sjeng.org)
  • IBM's Deep Blue Chess Grandmaster Chips (Feng-hsiung Hsu), IEEE Micro 19(2), 70-81, March-April 1999 · IEEE (copy in the Computer History Museum archive)
• Related Turing test 1950

  Both records bear on what counts as evidence of machine thinking.

Later

• Contrasts Libratus beats poker professionals 2017links to this record

  The paper sets Libratus beside the wins at checkers and chess, where the opponent sees the whole board; poker is a game of imperfect information.

  • Superhuman AI for heads-up no-limit poker: Libratus beats top professionals (Brown and Sandholm, Science 359:418-424), author copy · Science (AAAS), copy on Noam Brown's site