Kakuro Solver

Stuck on a Kakuro from a newspaper, book or app? Copy its grid here, add the clues, and the solver finds the answer. Reveal one cell at a time if you only want a hint.

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Tap a white cell to turn it black, then tap the black cell to type its clues.

How to use the Kakuro solver

1. Set the size. Use the row and column buttons to match your puzzle, counting the clue cells along the top and left edges.

2. Draw the black cells. Tap a white cell to turn it black. Tap a black cell to enter its down sum (the number below the diagonal) and its across sum (the number above it).

3. Solve. The solver checks the grid, then finds the answer. Reveal one cell to get unstuck, or show the whole solution to check your work.

Frequently asked questions

Is the Kakuro solver free?

Yes. It's free, needs no sign-up, and runs entirely in your browser: the grid you type never leaves your device.

Why does the solver say my puzzle has more than one solution?

A proper Kakuro has exactly one answer. If the solver finds two, a clue is usually mistyped or a black cell is in the wrong place. Double-check the sums against your puzzle.

How big a grid can it solve?

Grids up to 14 × 14 cells, which covers newspaper and puzzle book sizes. Very open sketches with few clues may be too ambiguous to finish.

Can I get a hint instead of the whole answer?

Yes. After solving, the digits stay hidden: tap any white cell to reveal just that one.