Welcome to puzzles.mit.edu!

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First time here?

This site was created to explore "puzzles" that have the following properties:

We're calling these POSHes (Puzzles Only Solvable by Humans), and they're sort of like CAPTCHAs, but a bit different, because the answer can vary from person to person: "Which smell reminds you most of winter?" -- I may answer "cinnamon" and you may answer "orange", but it is a valid POSH, provided that we each respond the same way next time.

Please help!

Your feedback is important. We'd like to find out which POSHes you like, which you don't, and hear suggestions for new ones. Once we determine which are good, we'll use them as part of a scheme to make better passwords.

Take a look at the the about page for more on who we are, and what we're trying to do.


or email wdaher-puzzles@mit.edu.