Akinator is an online twenty-questions game: if you can stump the identity-guessing genie, you add to its database and make it smarter. How to efficiently store a twenty-questions database. How to play twenty questions against a liar. Another paper about how to play twenty questions against a liar. How to play twenty questions against a procrastinator.
posted by escabeche on Dec 10, 2009 - 179 comments

Real or Fake? From the Life Magazine photographic archives.
posted by netbros on Jul 8, 2009 - 36 comments

Word Sandwich: The mystery five-letter word is somewhere between your "highest" guess alphabetically and your "lowest." It's essentially a lexical Guess the Number.
posted by tepidmonkey on Jan 16, 2008 - 28 comments

iden.tify.us is like AskMe, but only for the question, "Hey guys, what is this song?"
posted by boo_radley on Oct 29, 2007 - 15 comments

A View from the Back of the Envelope - approximations and the fun behind them.
posted by Gyan on Oct 18, 2005 - 25 comments

I searched and searched, but couldn't find a single post about the Guess the Google game. Even his Montage-a-Google project can't be found.
posted by absalom on Apr 26, 2005 - 15 comments