In 1997, an IBM computer beat a chess world champion for the first

“He can’t believe it,” were the words commentators had for a speechless Garry Kasparov, a world chess champion, after he lost to IBM’s computer named Deep Blue. Watch how CNN covered the historic event 25 years ago.

The day a computer beat the chess world champion, 1997 - Rare

On this day: Born April 13, 1963; Russian chess champion Garry

Twenty years on from Deep Blue vs Kasparov: how a chess match

Kasparov Loses to Deep Blue: The First Time a Human Chess Player

DEEP BLUE DEFEATED GARRY KASPAROV IN CHESS, by Society of AI

The day a computer beat the chess world champion, 1997 - Rare

The Chess Master and the Computer, Garry Kasparov

Deep Blue beat G. Kasparov in 1997

Game changers: Do clever machines add up to AI?​

Deep Blue: Computer which defeated world chess champion Garry