Sixty years ago, Alan Turing sat down to write a computer algorithm which could play a human at chess. Sadly, he never got to see it running on a computer, but now it's been coded up and who better to pit it against than... Garry Kasparov? Gulp.
On this day in 1997, Garry Kasparov sat down to his final day of chess with IBM's Deep Blue. It didn't go well, and eventually the computer won, beating the expert on the final day of a six-game competition. The result changed the way we think about computer intelligence for good.
In today's Remainders: your noggin! It's what chess champ Garry Kasparov used to defeat increasingly sophisticated computer opponents; it's what the contestants on Jeopardy consult for answers (or questions); it's the site of the next X-Prize challenge; and more.