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Cryptle #72 · Fri 13 Nov 2026

This one is from the archive. Play it for practice — past puzzles never count toward a streak. Today’s cipher is here.

3 guesses to crack the cipher. One cipher each day.

How to play Cryptle

The block on the page is an ordinary English sentence with a cipher laid over it. Every letter is still in there. Your job is to read it.

  • We tell you which cipher it is Today it’s Base64, and the key is Base64. The work is the decoding, not guessing what you’re looking at.
  • Type the decoded message Capitals, spaces and punctuation are all ignored — the third stone and THETHIRDSTONE both count.
  • 3 guesses, then the day is done A wrong guess tells you whether your answer is even the right length, and which part of your method to doubt.
  • Solve it and your streak grows Miss a day, or run out of guesses, and it goes back to zero. That’s the whole prize — there’s nothing to win but the run itself.
  • A new one lands at midnight Past days stay playable in the archive, but practice never counts toward a streak.

Never solved one before? The guides walk through every cipher we use, one at a time.

Base64

Base64

Q09ERSBCTEFDS1NQT1Q=

Need a nudge?

The encoding email attachments travel in. Every 4 characters hold 3 bytes; an = at the end is padding.

Learn the method: how to solve base64

The answer

CODE BLACKSPOT

That’s a real code. Use BLACKSPOT at checkout on this month’s hunt.

How it works

Nothing here is secret — it's how a machine spells. Recognise the encoding and you can read it straight back. This one is Base64. The key: Base64. The encoding email attachments travel in. Every 4 characters hold 3 bytes; an = at the end is padding. Convert the first three characters back and they read C O D. The answer was CODE BLACKSPOT.

Next time, check your work with the Base64.

Today’s cipher →

Ready for a real one?

These are the same techniques our monthly hunts are built on

One hunt a month, a real prize pool, and puzzles that take more than a coffee break. Members get every monthly hunt included.

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