Deep Blue
Deep Blue
Deep Blue was a chess-playing computer developed by IBM. It is best known for being the first piece of artificial intelligence to win both a chess game and a chess match against a reigning world champion under regular time controls.

Deep Blue won its first game against Gary Kasparov on the 10th February 1996, when it defeated him in game one of a six-game match. However, Kasparov won three and drew two of the following five games, defeating Deep Blue by a score of 4–2. Deep Blue was then heavily upgraded, and played Kasparov again in May 1997. Deep Blue won game six, therefore winning the six-game rematch and becoming the first computer system to defeat a reigning world champion in a match under standard chess tournament time controls. Kasparov accused IBM of cheating and demanded a rematch however, IBM refused this request and retired Deep Blue.

Deep Blue, with its capability of evaluating 200 million positions per second, was the fastest computer that ever faced a world chess champion.

The Deep Blue project inspired a more recent grand challenge at IBM: building a computer that could beat the champions at a more complicated game, Jeopardy!.

Over three nights in February 2011, the machine named Watson took on two of the all-time most successful human players of the game and beat them in front of millions of television viewers. The technology in Watson was a substantial step forward from Deep Blue and earlier machines because it had software that could process and reason about natural language, then rely on the massive supply of information programmed into it in the months before the competition. Watson demonstrated that a whole new generation of human – machine interactions will be possible. (IBM Watson: The inside story of how the Jeopardy-winning supercomputer was born, and what it wants to do next)

Garry Kasparov
Garry Kasparov