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StringMash Daily #4

Tuesday 6 October 2026 · Easy · Polybius square. Any day's puzzle can be played, and counts as solved.

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    About puzzle #4

    Puzzle #4 is the one for Tuesday 6 October 2026: an easy Tuesday puzzle, with the key shown, in Polybius square. The letters sit in a 5 by 5 grid, and each one is written as its row and column numbers. I and J share a square to make 25.

    Stuck? The Polybius square 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.