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Google Software Beats Board-Game Champ in Three Straight Matches
- AI system scores victory in televised `Go' game tournament
- Beaten South Korean Lee Sedol considered world's best player

Lee Se-Dol, one of the greatest modern players of the ancient board game Go, arrives before the third game of the Google DeepMind Challenge Match against Google-developed supercomputer AlphaGo at a hotel in Seoul on March 12, 2016.
Photographer: Jung Yeon-Je/AFP via Getty Images