Go game image courtesy of Jaro Larnnos under a Creative Commons license

Google DeepMind’s AlphaGo computer program beat 9-dan professional go player Lee Se-dol 4-1 in a five-game match. Lee has won 18 international titles and is widely regarded as one of the best Go players in the world. AlphaGo made a number of decisive moves that the human players found completely surprising and “beautiful”. The South Korean Go Association granted AlphaGo an honorary 9-dan ranking for its “sincere efforts” to master the game at a level approaching …