Google's AlphaGo program bested the world's top Go player by the slimmest margin possible in the first of three matches Tuesday, but that doesn't mean humanity is safe. The AI won a match against Ke Jie as part of an exhibition during the Future of Go Summit in Wuzhen, China. While Ke made moves reminiscent of his computerized opponent, he was eventually defeated by half a point. AlphaGo is supposed to maximize its chances of winning, rather than maximize the margin of its victory, according to DeepMind founder Demis Hassabis. "AlphaGo always tries to maximize its probability of winning, rather than try to maximize the size of the winning margin," he said during a post-match press conference.