Google's AlphaGo has defeated the world's best Go player in the second out of three games, scoring an overall win for the artificial intelligence algorithm in the fiendishly complex board game. CNET adds: The human gave it his all. "Incredible," wrote DeepMind founder and CEO Demis Hassabis on Twitter while the match was underway. "According to AlphaGo evaluations Ke Jie is playing perfectly at the moment." The match took place over a year after AlphaGo bested Lee Sedol, one of the world's top Go players, in four out of five matches in March 2016. It also beat European champion Fan Hui 5-0 in October 2015. The match was being played in China, the place where the abstract and intuitive board game was born. The government, however, isn't a big fan of letting its citizens know about the battle and has censored all the livestreams in the country.