AlphaZero is an artificial intelligence program developed by DeepMind that learns to play games like chess, shogi, and Go without human guidance. It uses a technique called reinforcement learning, where it plays millions of games against itself to improve its strategies and decision-making. What makes AlphaZero unique is its ability to master these complex games in a short time, often surpassing the performance of traditional engines and even world champions. By analyzing the game board and evaluating potential moves, it develops a deep understanding of the game, showcasing the power of AI in strategic thinking.