It seems Deep Mind and AlphaGo have caused a bit of commotion playing as “Master” or “Magister” on various Go servers. After winning 50 out of 50 games Deep Mind revealed themselves to the world.

Further reading:

https://qz.com/877721/the-ai-master-bested-the-worlds-top-go-players-and-then-revealed-itself-as-googles-alphago-in-disguise/

http://gizmodo.com/google-s-alphago-is-slaying-unsuspecting-nerds-online-1790761828

http://nlab.itmedia.co.jp/nl/articles/1701/05/news031.html