After 3 losses, human Go champion beats computer

SEOUL — A simple computer pop-up message gave humans some relief in a high-profile man-versus-machine board-game battle: “AlphaGo resigns.” With those words, South Korean Go grandmaster Lee Se-dol on Sunday claimed his first victory in a best-of-five series against AlphaGo, an artificial-intelligence project developed by Alphabet Inc.’s GOOG, +1.96% GOOGL, +1.73%    Google. The win in the ancient chess-like game restored some pride to Lee, as well as big smile across his face. He had been well beaten in the opening three games after predicting he would win the series easily. “I couldn’t be happier today…this victory is priceless. I wouldn’t trade it for the world,” Lee said after the game at a news conference, where journalists greeted him with cheers and applause. The matchup has been billed as an…


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