In case you had not gotten the news yet, the Go playing program AlphaGo (developed by the Deep Mind division of Google) has beaten Lee Se-dol who is among the top two or three Go players in the world. Follow the link below for an informative informal video describing AlphaGo and the victory.
http://www.theverge.com/2016/3/9/11184362/google-alphago-go-deepmind-result
Science magazine has a nice pregame report.