Deep Thought (chess computer) Kasparov in 1989 as well as in a correspondence match with Michael Valvo. It was named after Deep Thought, a fictional computer in Douglas Adams' series, "The Hitchhiker's Guide to the Galaxy". The naming of chess computers has continued in this vein with Deep Blue, Deep Fritz, Deep Junior, etc. Deep Thought won the North American Computer Chess Championship in 1988 and the World Computer Chess Championship in the year 1989, and its rating, according to the USCF was 2551. In 1994, Deep Thought 2 won the North American Computer Chess Championship for the fifth time, with its rating estimated
Deep Blue versus Garry Kasparov this is nowadays a common tactic, it was a relatively new idea at the time. Despite this anti-computer tactic, the game was drawn. "May 7". In this game Kasparov played the Caro–Kann Defence. Kasparov got into time trouble late in the game. The sub-optimal moves he played in a hurry may have cost him the victory. "May 10". In this game, the King's Indian Attack opening was played. As in the previous game, Deep Blue played a brilliant endgame that secured a draw, when it was looking as if Kasparov would win. If White plays 50.g8=Q then Black can force