Year in review: AlphaGo scores a win for artificial intelligence

Computer defeats world champion Go player

AlphaGo versus Lee Sedol

GO GAME CHANGER AlphaGo won four games to Lee Sedol’s one in their March Go matchup. Sedol, a South Korean professional player, studies the board after his third loss.

Lee Jin-man/AP Photo

In a hotel ballroom in Seoul, South Korea, early in 2016, a centuries-old strategy game offered a glimpse into the fantastic future of computing.