[Luc]

People could play the game at http://20q.net/ , and if it didn't guess your word it asked you to enter it. So it was trained by the players.

It's a neural net, so very efficient on small devices.

[c22]

https://patents.google.com/patent/US20060230008?oq=Artificia...

[aabbcc1241]

Looks similar to the https://akinator.com

[ableal]

Page is working nicely, albeit with " © 1988-2007, 20Q.net Inc.," in the game pages, -2017 in the front page.