AlphaGo, (United States). With simple rules but a near-infinite number of possible outcomes, the ancient Chinese board game Go has long been considered the holy grail of artificial intelligence. Director Greg Kohs' absorbing documentary chronicles Google's DeepMind team as it takes on one of the world's top Go players in a weeklong tournament, pitting man against machine in a competition that reveals as much about the workings of the human mind as it does the future of AI. A Netflix release.