Best Free Kakuro
Fill the white cells 1–9 so each run hits its clue with no repeats — cross-sums logic.
Level 1
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How to play
- Read the clues. On each dark cell, the top-right number is the sum for the run to its right; the bottom-left number is the sum for the run going down.
- Fill the white cells. Click a white cell and type a digit 1–9. Each run must add up to its clue with no digit repeated.
- Clear every run. When every run reaches its clue with no repeats and no conflicts, the puzzle is solved.
About Kakuro
Kakuro is the cross-sums number puzzle — think of it as a crossword done with digits. The white cells form horizontal and vertical runs, and each run has a clue: the small number in the top-right of a dark cell is the total of the run to its right, and the number in the bottom-left is the total of the run going down. Fill every white cell with a digit from 1 to 9 so each run adds up to its clue, and never repeat a digit within the same run. Every board is generated fresh and is fully solvable; conflicts are highlighted live as you play. The grid grows with difficulty — 5×5 on easy, 7×7 on normal and 9×9 on hard. No signup, no download, nothing uploaded.
Frequently asked questions
Fill each white cell with a digit from 1 to 9 so that every horizontal and vertical run adds up to the clue printed in the dark cell at its start — top-right for across runs, bottom-left for down runs. No digit may repeat within the same run.
They are the sums each run must reach. The number in the top-right of a dark cell is the total for the white cells to its right; the number in the bottom-left is the total for the white cells below it.
No. Within a single run — a horizontal or vertical block of white cells — each digit from 1 to 9 can be used only once. The same digit can appear in other runs, just not twice in one.
Difficulty sets the grid size: easy is 5×5, normal is 7×7 and hard is 9×9. Larger grids have more runs and longer sums to balance, so they take more reasoning.
Yes. Each board is generated from a valid completed grid and the clues are derived from it, so there is always a solution that satisfies every sum. Conflicting cells are highlighted as you go.
Completely free — no signup, no download and no paywall. It generates and runs entirely in your browser, and nothing is uploaded.
Yes. It runs in your browser, so Kakuro works on phones and tablets as well as desktop — there is no app to install.
No. Kakuro works with no signup at all; an optional free account only exists to unlock higher usage limits.
Usually just a few seconds for a typical file — Kakuro starts working the moment you give it your input.
Your input is processed in memory and never stored, so nothing is left behind once you have your result.