Numbers · 1 player

Kakuro

Cross-sums. Fill the white cells with the digits 1 to 9 so that every row and column run adds up to its clue, with no digit repeated inside a run. Three grid sizes; every puzzle has exactly one solution.

Time0:00

Filled0 / 0

Grid size

Best: –

How to play

Each clue cell carries up to two numbers: the one top-right is the sum of the run to its right, the one bottom-left is the sum of the run below it. A run uses the digits 1–9, each at most once.

Tap a cell, then a digit on the keypad or your keyboard. Switch on Pencil to note candidates in a cell instead. Arrow keys move between cells, Backspace clears one, P toggles pencil mode.

Clashes inside a run are tinted as you go. Check marks the digits that are wrong, Hint fills one correct cell, and Take back undoes your last entry. Short runs with small or large sums are the place to start.