Go Champion Beats AlphaGo Software on Fourth Try

ENLARGE Lee Se-dol places the first stone against Google’s artificial intelligence program, AlphaGo, during the fourth match of the series on Sunday. Photo: Associated Press By In-Soo Nam In-Soo Nam The Wall Street Journal CANCEL Biography @namsama_wsj Google+ in-soo.nam@wsj.com March 13, 2016 5:16 a.m. ET 0 COMMENTS SEOUL—South Korean Go champion Lee Se-dol beat Google’s AlphaGo computer software on Sunday, after his third straight loss last week, in a five-game match between human and computer at the ancient Chinese board game. Although AlphaGo, an artificial-intelligence project developed by Google parent Alphabet Inc., had already clinched the best-of-five series, Mr. Lee’s first win indicates the computer program isn’t perfect and the machine’s mastery of the game could still be some time away. The showdown is widely viewed as an important test…


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