Chess was long considered a domain requiring human intelligence, strategy, and intuition, where only humans could excel. This perception was dramatically challenged when IBM's Deep Blue, a highly specialized chess-playing machine, defeated Garry Kasparov, the reigning world champion, in 1997. Deep Blue's victory demonstrated that a machine, even one relying primarily on brute-force computation and greedy tree search algorithms to evaluate possible moves, could outperform the best human players. This event not only highlighted the potential of artificial intelligence in strategic decision-making tasks but also marked a significant milestone in the development of AI, showing that machines could master complex intellectual activities previously thought to be the exclusive realm of human intelligence.