Google’s DeepMind AI has already played four games of Go against top human Lee Sedol, and the tally is 3-1 to the machines; that's a good result for computer scientists, bad for our betting chances against Skynet.
The four rounds played already don’t leave many questions unanswered: DeepMind’s AlphaGo program already won the 5-game series, showing without doubt that an AI can beat humans at a game of Go; Sedol proved he can beat the computer; and South Korea’s Go federation already awarded AlphaGo a 9-dan rating, the same as Sedol. There's been something for everyone.
All that’s really left to play for is a little bit of honour, and the chance to level the score a little. Going into the contest, Google’s Demis Hassabis put the odds at 50-50, so a 3-2 score would make him look extra-clever. In any case, the entire event is being livestreamed right now from the Four Seasons hotel in Seoul.