Deep Blue was a chess-playing computer developed by IBM in the late 1980s and early 1990s. It gained fame for its ability to compete against and defeat human chess champions. In 1997, it made history by winning a six-game match against reigning world champion Garry Kasparov, marking a significant milestone in artificial intelligence. The system used advanced algorithms and massive processing power to evaluate millions of possible moves per second. Deep Blue was designed specifically for chess, utilizing a combination of brute-force computation and strategic evaluation to make decisions. Its victory showcased the potential of computers in complex problem-solving tasks.