AlphaGo beats Ke Jie again to wrap up three-part match

AlphaGo has again defeated Ke Jie, the world's number one Go player, in their second game, meaning the AI has secured victory in the three-part match. The win over Ke, universally considered the best Go player in the world, essentially confirms that AlphaGo has surpassed human Go ability a little over a year after the AI first beat Lee Se-dol. Ke played "perfectly" for about the first 50 moves, according to AlphaGo's analysis, and evolved his strategy to engage in a series of complex battles across the board. But AlphaGo handled the multi-angled assault well to simplify the engrossing game and eventually forced Ke to resign. "For the first 100 moves it was the closest we've ever seen anyone play against the Master version of AlphaGo," DeepMind CEO Demis Hassabis said in the post-game press conference.