IBM unveiled its Deep Blue chess supercomputer prototype 30 years ago today — two years later in its second attempt, it defeated Grandmaster Garry Kasparov

https://www.tomshardware.com/tech-industry/artificial-intelligence/ibm-unveiled-its-deep-blue-chess-supercomputer-prototype-30-years-ago-today-two-years-later-in-its-second-attempt-it-defeated-grandmaster-garry-kasparov