How do you play Kakuro online?

Fill the white cells with digits from 1 to 9. Each horizontal run must add up to the number to its left and each vertical run to the number above it. No digit may repeat within a run. You win when every cell is filled in correctly.

What are the numbers in the black Kakuro cells?

A black cell can hold two numbers split by a diagonal. The number in the upper-right triangle is the sum of the horizontal run of white cells to its right, and the number in the lower-left triangle is the sum of the vertical run of white cells below it.

Free online Kakuro – the logic number crossword, 3 difficulty levels

Play Kakuro online for free — the logic number crossword that blends a crossword with Sudoku. Fill the white cells with digits 1 to 9 so each horizontal run adds up to the number to its left and each vertical run adds up to the number above it. No digit may repeat within a single run. Play at three difficulty levels with no registration — your best times are saved in your browser.

How to play

Fill the white cells with digits from 1 to 9. Each horizontal run of white cells must add up to the number shown in the cell to its left (the number in the upper-right triangle), and each vertical run must add up to the number shown above it (the number in the lower-left triangle).
No digit may repeat within the same horizontal run or the same vertical run.
Click a white cell and type a digit (1–9), or use the on-screen keypad below the board. Backspace or Delete clears a cell. Use the arrow keys to move between cells.
The "Check" button marks incorrect cells in red. The "Hint" button fills the correct digit into the selected cell.
You win when every white cell is filled in correctly. The timer starts on your first digit, and your best times are saved in your browser.

🔢 Kakuro

How to play