Lee Sedol (9p) vs. AlphaGo - Match Series

Lee Sedol played AlphaGo in the first match of the series on March 9th, 2016 @ 4am GMT. A game with lots of fighting, surprising tenukis, and insane reading. It was relayed on OGS to a record-breaking crowd of over 445! AlphaGo, which was the first computer program to beat a professional player in an even game back in October, made history yet again by coming out on top in the first game of the series against Lee Sedol, one of the world’s best players! The relayed games on OGS will be posted here as they are completed:

Lee Sedol vs. AlphaGo - Game 1
No chat version (easier to load) --> Game 1

Lee Sedol vs. AlphaGo - Game 2
No chat version (easier to load) --> Game 2

Lee Sedol vs. AlphaGo - Game 3
No chat version (easier to load) --> Game 3

Lee Sedol vs. AlphaGo - Game 4
No chat version (easier to load) --> Game 4

Lee Sedol vs. AlphaGo - Game 5
No chat version (easier to load) --> Game 5


Why is the first match not loading well?

It loaded for me.

It does take some time to load, probably b/c of the huge chat log

Yesterday’s stream was 110k viewers cap I think?
Do you think there will be more people viewing the 2nd game because my senpai won the first game? :smiley:


Apropos the number of viewers:

https://online-go.com/demo/114754 (that’s @HowToPlay’s relay demo of the 2nd game between AlphaGo and Lee Sedol)

What about this number — is it true?

Not likely. There’s a recent bug that popped up regarding number of viewers. There would still have been a lot!

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RobertT(5d) (AGA5.67) was kind to provide enlightening analysis of the AlphaGo games on my backup relay boards:
Lee Sedol vs AlphaGo - Game 1
AlphaGo vs Lee Sedol - Game 2
Lee Sedol vs AlphaGo - Game 3
AlphaGo vs Lee Sedol - Game 4
Lee Sedol vs AlphaGo - Game 5

Separately, Demis Hassabis gave a 1 hour presentation on DeepMind and AlphaGo 2 weeks before the matches. Unexpectedly detailed description on AlphaGo background and structure:
Artificial Intelligence & the Future by Dr.Demis Hassabis

Press Conference after Game 1
Press Conference after Game 2
Press Conference after Game 3
Press Conference after Game 4
Press Conference after Game 5

Go professionals are not AI experts, and AI experts are not pro-level Go experts. I have read many reviews on this game series, and found this one by Zhe Li, 6p to be striking a good balance. Articles published in China, translated by Prudential Center Go Club in Boston:
Game 1 Lee Sedol’s Strategy and AlphaGo Weakness
Game 2 Nobody Could Have Done a Better Job than Lee Sedol
Game 3 and 4
Game 5 translation work under way
Who is Zhe Li, 6p

Some pictures of David Silver’s presentation on indicated Winrate (winning probability percentage) by AlphaGo version 18 during the games: https://www.reddit.com/r/baduk/comments/4cgitz/alphagos_confidence_chart_for_the_5_games_david/


Nice short reviews by gogameguru here:


Highest I saw after a reload of the page was 570.


Live Streams for Game #4
• Official DeepMind stream: https://www.youtube.com/watch?v=yCALyQRN3hw
• AGA stream: https://www.youtube.com/user/USGOWeb/live
• Ke Jie: http://sports.letv.com/match/122343003.html
• Gu Li: http://tech.qq.com/alphaGo.htm
• WeiqiTV: http://www.zhangyu.tv/777071
• On Twitter – AskAKorean: http://twitter.com/AskAKorean

(thanks to the AlphaGo Chat (AI/Machine Learning) for info on additional streams https://alphagochat.slack.com/)

where’s the link for game4?

@lichungchang: Scroll up, the other posts have been edited and now also contain links to game 4.

Game 5 relay - https://online-go.com/demo/118817

Proofed for mistakes during stream downtime and board camera problems…

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Is there a relay without chat? It is impossible to access this file since ogs is already heavy on the connection in a normal game.

Game 5 without chat - https://online-go.com/demo/119105


AlphaGo Games without chat

Match vs Fan Hui:

Game 1 - Game 2 - Game 3 - Game 4 - Game 5

Match vs Lee Sedol:

Game 1 - Game 2 - Game 3 - Game 4 - Game 5


Thanks a lot.