In which year did alphago defeat the human world Go champion?

On March 20 16, AlphaGo defeated Li Shishi, the world champion of weiqi, in the man-machine war of weiqi.

On March 9th, 20 16, the first game of Go Man-Machine Battle started in Four Seasons Hotel, Seoul, South Korea. Before the game, Alpha Go guessed wrong, and Li Shishi chose Black to take the lead in layout. A new type of black chess was laid out, and Alpha didn't respond well and made mistakes. Li Shishi has grasped the weakness that computer layout is not good at dealing with new types, and gained a good situation.

The key to the victory or defeat of Go is often the middle set. After Alpha Go, the move became tough and the two sides started a contact war. Li Shishi seized the opportunity, surrounded a big empty space, and took the lead in the overall situation.

Just when all the players watching the ball thought that Li Shishi was dominant, he released a very amateur technique, which instantly swept away the weak advantage and turned it into a disadvantage. Entering the immortal, there is nothing wrong with Alpha Go. When Alpha Go reached 186, Li Shishi finished counting and gave up.

rules of a contest/competition

The man-machine battle between Li Shishi and Alpha Go is a gobang challenge, but no matter what the score is, it will be five games full. The game adopts the rules of China Weiqi, and the black chess player sticks 3 3/4 pieces (i.e. 7.5 meshes), each side lasts for 2 hours and lasts for 60 seconds three times.

The five competitions were held on March 9th, 6th, 10th, 2nd, 3rd and 5th, respectively, in Four Seasons Hotel, Jongno-gu, Seoul, South Korea.