AlphaGo defeats Ke Jie 3-0 in Wuzhen

AlphaGo played Ke Jie, then the world’s top-ranked Go player, in three games at the Future of Go Summit in Wuzhen, China, taking the first by half a point and the next two by resignation. DeepMind had offered a $1.5 million prize.

Why it mattered A year after Lee Sedol, the result answered the question of whether the Seoul match had been a fluke. DeepMind retired AlphaGo from competitive play afterward.