Chinese Go player Ke Jie reacts as he plays a match against Google’s artificial intelligence program, AlphaGo, during the Future of Go Summit in Wuzhen in eastern China’s Zhejiang Province, Thursday, May 25, 2017. A computer beat China’s top player of go, one of the last games machines have yet to master, for a second time Thursday in a competition authorities limited the Chinese public’s ability to see. (Chinatopix via AP) CHINA OUT/XAW801/17145336311441/CHINA OUT/1705251130