Go is an ancient Chinese board game, which has been deemed more difficult to play and master than chess. So it’s quite remarkable that AlphaGo was able to defeat one of the world’s most Go players in the first computer versus human matchup. Like Deep Blue’s (IBM) win over chess great Garry Kasparov two decades ago, this marks an incredible leap forward for the advancement of artificial intelligence.
So how did AlphaGo beat Sedol? Well, Google’s DeepMind team spent years perfecting AlphaGo’s algorithms using both machine learning and tree search methods. It studied both human and computer players to hone its skills, and maintains a database of over 30 million moves from previously recorded games.
The first match took place yesterday at the Four Seasons Hotel in Seoul, South Korea. Four additional matches will take place with the second taking place today and the third, fourth and fifth matches commencing on March 12th, 13th and 15th respectively.
Incredible moment for AI. Congrats to AlphaGo and Lee Sedol for a great game. More to come! https://t.co/0Ekk1C3wmg— sundarpichai (@sundarpichai) March 9, 2016
"I am in shock, I admit that, but what's done is done,” said Sedol after the match in an interview with reporters. “I enjoyed this game and look forward to the next. I think I failed on the opening layout so if I do a better job on the opening aspect, I think I will be able to increase my probability of winning."
“They were neck-and-neck for its entirety, in a game filled with complex fighting,” wrote Google DeepMind Founder and CEO Demis Hassabis. “Lee Sedol made very aggressive moves but AlphaGo did not back down from the fights. AlphaGo took almost all of its time compared to Lee Sedol who had almost 30 minutes left on the clock.”
The overall winner take home a $1 million prize, which Sedol [previously] thought would be a relatively easy undertaking. However, after yesterday’s match, that $1 million prize might seem further away from reach. On the other hand, if AlphaGo runs the tables or wins after five matches, the prize money will be donated to UNICEF, STEM and Go societies.
If you want to follow the next four matches you can watch live footage below: