From NY Times is this article [Smarter Than You Think - I.B.M.'s Supercomputer Challenges 'Jeopardy!' Champions - NYTimes.com](http://www.nytimes.com/2010/06/20/magazine/20Computer-t.html?hp) about how IBM has built a machine that does pretty well playing Jeopardy.
Neither, as it turned out. Both were beaten to the buzzer by the third combatant: Watson, a supercomputer.
For the last three years, I.B.M. scientists have been developing what they expect will be the world’s most advanced “question answering” machine, able to understand a question posed in everyday human elocution — “natural language,” as computer scientists call it — and respond with a precise, factual answer.