Cipher Key — tap a letter to assign its digit
⚠ Two letters share the same digit — check your assignments.
Hidden Message
Grid
Select a cell to enter a digit
How to Play
▸Goal: Fill every white cell (1–9) so each row and column run sums to its clue value. No repeats within a run.
▸Hidden Cipher layer: Clues show letter codes instead of numbers. Each letter maps to a unique digit 0–9. Crack the cipher to reveal the sums.
▸Color tints: Each cipher letter has a color. Cells tinted that color are constrained by that letter's clue. As you decode each letter, its tint fades — the grid clears as you solve.
▸Hidden message: Every correct cipher breakthrough reveals more of the buried message below the key panel.
▸Assign: Tap a letter in the Cipher Key panel above to assign its digit. Cyan = down clue · Orange = across clue.
▸Notes: Toggle ✏ to mark candidates without committing.