The hand of God move from Lee Sedol in match 4 against AlphaGo. This move 78 changed the dynamics of the match and Lee Sedol wins against AlphaGo.

With more board configurations than there are atoms in the universe, the ancient Chinese game of 'Go' has long been considered a grand challenge for artificial intelligence. On March 9, 2016, the worlds of Go and artificial intelligence collided in South Korea for an extraordinary best-of-five-game competition, coined The Google DeepMind Challenge Match. Hundreds of millions of people around the world watched as a legendary Go master took on an unproven AI challenger for the first time in history. Directed by Greg Kohs with an original score by Academy Award nominee, Hauschka, AlphaGo chronicles a journey from the halls of Cambridge, through the backstreets of Bordeaux, past the coding terminals of DeepMind in London, and, ultimately, to the seven-day tournament in Seoul. As the drama unfolds, more questions emerge: What can artificial intelligence reveal about a 3000-year-old game? What can it teach us about humanity?
—AlphaGo


Credit: AlphaGo Movie
http://www.imdb.com/title/tt6700846/?...

Alpha Go at Google Deep Mind:

https://www.deepmind.com/research/hig...