alphago is a computer program that plays the board game go. it was developed by the london-based deepmind technologies, an acquired subsidiary of google (now alphabet inc.). subsequent versions of alphago became increasingly powerful, including a version that competed under the name master. after retiring from competitive play, alphago master was succeeded by an even more powerful version known as alphago zero, which was completely self-taught without learning from human games. alphago zero was then generalized into a program known as alphazero, which played additional games, including chess…