DAILY
Today's Puzzle
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Solved
Enjoyed the rotor cipher? I designed a Cipher Set you can print: my field cipher machine, the rotor demonstrator and the Lorenz wheel on one plinth.
Today
How it works
A new puzzle goes up at midnight UK time. They take turns: a word on my three rotor machine, a riddle in Morse, an aviation question, then one on physics or space. Type your answer and press Check. Capitals and spaces at the ends don't matter.
A first try solve is worth 50 points, then 10 fewer per extra try, down to 10. A hint takes 10 off. Solve on days in a row to build a streak. Your points, streak and history stay in this browser only.
Your answer is checked in your browser against a fingerprint, so the answers are never in the page. If you send your time, only your nickname, the time and that fingerprint go to my counter.