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

“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.

Chess champion Garry Kasparov vs Deep Blue: it wasn't a fair fight — but Kasparov had the last laugh

Deep Blue, IBM's supercomputer, defeats chess champion Garry Kasparov in 1997 – New York Daily News

KLTV 7 - Today in History - May 11, 1997 - A computer wins chess tournament. For the first time, a computer (IBM Deep Blue) defeated a reigning world chess champion (Garry Kasparov) under tournament conditions.

Kasparov Loses to Deep Blue: The First Time a Human Chess Player Loses to a Computer Under Tournament Conditions : History of Information

When a Computer Outsmarted a Master

Deep Blue beat G. Kasparov in 1997

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

How IBM's Deep Blue Beat World Champion Chess Player Garry Kasparov - IEEE Spectrum

World chess championship: Computers push limits, but humanity shines through

Chess computer wins game against champ, February 10, 1996 - EDN