AlphaGo versus Ke Jie is a three-game Go match between the computer Go program AlphaGo and current world No. 1 ranking player Ke Jie, being played in Wuzhen, China, 23, 25, and 27 May 2017. As of 24 May 2017, Ke Jie is currently ranked number one in the world under Rémi Coulom's ranking system.[1] He continuously held the world No. 1 ranking for two years from late 2014 to late 2016.[2]
GoogleDeepMind offered 1.5 million dollars winner prizes for this match while the losing side took 300,000 dollars for participating in the three games.[3][4][5] AlphaGo won all three games against Ke Jie.[6][7] After winning its three-game match against Chinese grandmaster Ke Jie, the world's top Go player, AlphaGo is retiring. DeepMind will disband the team that worked on Go and spend their time exploring new AI in other areas instead of Go. After these, DeepMind will release 50 games AlphaGo played against itself.[8] AlphaGo was awarded professional 9-dan by Chinese Weiqi Association[9]
Game 1
AlphaGo (white) won by 0.5 point.
First 99 moves
Moves 100–199 (139 at )
Moves 200–289
Game 2
About 1 hour into the game, Demis Hassabis tweeted that according to AlphaGo's evaluations, Ke was playing perfectly.[10] However, Ke later lost ground on the lower part of the board. About 4 hours into the game, AlphaGo simplified the position, and it became clear that Ke was losing.
AlphaGo (black) won by resignation.
First 99 moves
Moves 100–155 (104/132/137 at , 129/135 at 101)
Game 3
Ke Jie (white) resigned game three, finishing the series with a 3-0 win for AlphaGo. At resignation, AlphaGo (black) had roughly an hour and a half of its time remaining, while Ke Jie had roughly 32 minutes left on the clock. A press conference is to be held 30 minutes from the game's completion.
)
, 129/135 at 101)
