South Korean professional Go player Lee Sedol (R) shakes hands with Demis Hassabis (L), CEO of Google's London-based AI subsidiary DeepMind, after the Google DeepMind Challenge Match against Google's artificial intelligence program, AlphaGo, in Seoul, South Korea, March 9, 2016. Lee Sedol lost the first match. (Xinhua/Yao Qilin)
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