StringMash.com

StringMash Daily #10

Monday 12 October 2026 · Warm-up · Atbash. Any day's puzzle can be played, and counts as solved.

Loading today's puzzle…

Remind me every day

No email and no sign-up. Add a repeating reminder to your calendar, or follow the feed in any RSS reader.

RSS feed
Move your streak to another device

Copy your code here and paste it on the other device. Solves from both are kept, and nothing is sent anywhere: the code is your progress, written short.

Past puzzles
    Put the day's puzzle on a class page or website:

    Put the daily puzzle on your site

    Paste this into your page's HTML. It shows the day's puzzle, new every midnight, and each reader's streak is kept in their own browser.

    The credit line under the frame is optional. We'd be grateful if you kept it. How embedding works

    About puzzle #10

    Puzzle #10 is the one for Monday 12 October 2026: the gentle Monday warm-up, with the key shown, in Atbash. The alphabet is reversed, so A swaps with Z, B with Y and so on. It was first used for Hebrew, and decoding is the same step as encoding.

    Stuck? The Atbash decoder is fair to use, and Hint fills in one letter at a time. A new puzzle opens every day at midnight where you are, at StringMash Daily, and every earlier one is in the archive under the puzzle.