Go-mästare i tårar – blev krossad av Googles AI

Ke Jie (simplified Chinese: 柯洁; traditional Chinese: 柯潔; pinyin: Kē Jié; born 2 August 1997) is a Chinese professional Go player of 9 dan rank. As of 24 May 2017, he is currently ranked number one in the world under Rémi Coulom's unofficial ranking system. He continuously held the world No. 1 ranking for two years from late 2014 to late 2016.

AlphaGo is a narrow AI, computer program developed by Alphabet Inc.'s Google DeepMind in London to play the board game Go. In October 2015, it became the first Computer Go program to beat a human professional Go player without handicaps on a full-sized 19×19 board. In March 2016, it beat Lee Sedol in a five-game match, the first time a computer Go program has beaten a 9-dan professional without handicaps. Although it lost to Lee Sedol in the fourth game, Lee resigned the final game, giving a final score of 4 games to 1 in favour of AlphaGo. In recognition of beating Lee Sedol, AlphaGo was awarded an honorary 9-dan by the Korea Baduk Association. It was chosen by Science as one of the Breakthrough of the Year runners-up on 22 December 2016. AlphaGo's algorithm uses a Monte Carlo tree search to find its moves based on knowledge previously "learned" by machine learning, specifically by an artificial neural network (a deep learning method) by extensive training, both from human and computer play.