Deep Thought was acomputer designed to play chess. Deep Thought was initially developed atCarnegie Mellon University and later atIBM.[1] It was second in the line ofchess computers developed byFeng-hsiung Hsu, starting withChipTest and culminating inDeep Blue. In addition to Hsu, the Deep Thought team includedThomas Anantharaman, Mike Browne,Murray Campbell and Andreas Nowatzyk.[2] Deep Thought became the first computer to beat agrandmaster in a regular tournament game when it beatBent Larsen in 1988,[2] but was easily defeated in both games of a two-game match withGarry Kasparov in 1989 as well as in acorrespondence match withMichael Valvo.
It was named afterDeep Thought, a fictional computer inDouglas Adams' series,The Hitchhiker's Guide to the Galaxy. The naming of chess computers has continued in this vein withDeep Blue,Deep Fritz,Deep Junior, etc.
Deep Thought won theNorth American Computer Chess Championship in 1988 and theWorld Computer Chess Championship in the year 1989, and itsrating, according to theUSCF was 2551.[2] In 1994, Deep Thought 2 won theNorth American Computer Chess Championship for the fifth time, with its rating estimated at around 2600. It was sponsored byIBM. Some engineers who designed Deep Thought also worked in the design of Deep Thought 2. Its algorithms were quite simple evaluation functions, but it could examine half a billion chess positions per move in tournament games, which is sufficient to reach depth of 10 or 11 moves ahead in complex positions. Despite that, using the technique ofsingular extensions it could also follow lines of forced moves that reach even further, which is how it once found acheckmate in 18 moves.[citation needed]
| History | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Products |
| ||||||||
| Business entities |
| ||||||||
| Facilities |
| ||||||||
| Initiatives | |||||||||
| Inventions | |||||||||
| Terminology | |||||||||
| CEOs |
| ||||||||
| Board of directors | |||||||||
| Other | |||||||||
