Finding solace in defeat by artificial intelligence

Fan Hui, the European Go champion, needed some fresh air. "I don't understand myself anymore." Hui was the first professional Go player to face AlphaGo, Google's artificial intelligence system and the title of a new documentary by Greg Kohs that debuted last week at the Tribeca Film Festival in New York. When Hui was invited to visit Google's London office housing the DeepMind research group that developed AlphaGo, he was feeling confident. After all, as Hui puts it, "it is just a program."