Answer: deepblue

AnswerCrossword Clue
DEEPBLUEIBM's chess machine, by way of MIT
DEEPBLUEChess-playing computer
DEEPBLUECobalt
DEEPBLUEGroundbreaking chess-playing computer
DEEPBLUEIBM's old chess-playing computer
DEEPBLUEComputer that bested Garry Kasparov in 1997