'It knew what you were going to do next': AI learns from pro gamers -- then crushes them

For decades, the world's smartest game-playing humans have been racking up losses to increasingly sophisticated forms of artificial intelligence. The defeats began in the 1990s when IBM's Deep Blue computer conquered chess master Garry Kasparov. More recently, Ke Jie -- until then the world's best player of the ancient Chinese board game "Go" -- was defeated by a Google computer program in May. Now the AI supergamers have moved into the world of e-sports. Last week, an artificial intelligence bot created by the Elon Musk-backed start-up OpenAI defeated some of the world's most talented players of Dota 2, a fast-paced, highly complex, multiplayer online video game that draws fierce competition from all over the globe.