[1] It was second in the line of chess computers developed by Feng-hsiung Hsu, starting with ChipTest and culminating in Deep Blue.
In addition to Hsu, the Deep Thought team included Thomas Anantharaman, Mike Browne, Murray Campbell and Andreas Nowatzyk.
[2] Deep Thought became the first computer to beat a grandmaster in a regular tournament game when it beat Bent Larsen in 1988,[2] but was easily defeated in both games of a two-game match with Garry 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.
[2] In 1994, Deep Thought 2 won the North American Computer Chess Championship for the fifth time, with its rating estimated at around 2600.