The world’s top Go player Lee Sedol (R) puts his first stone during the last match of the Google DeepMind Challenge Match against Google’s artificial intelligence program AlphaGo in Seoul, South Korea, in this handout picture provided by Google and released by Yonhap on March 15, 2016. REUTERS/Google/Yonhap

The world’s top Go player Lee Sedol (R) puts his first stone during the last match of the Google DeepMind Challenge Match against Google’s artificial intelligence program AlphaGo in Seoul, South Korea, in this handout picture provided by Google and released by Yonhap on March 15, 2016. REUTERS/Google/Yonhap