Sudoku
Fill the 9×9 grid so every row, column, and box holds the digits 1 to 9, from Beginner to Grandmaster.
Puzzle4.7
Kakuro
Fill every white square to match the across and down totals. No repeated digit in a run.
- Best
- —
Kakuro
Check each crossing clue before committing a digit.
Space or Enter to start
Game Guide
Kakuro Guide, Rules, and Tips
Fill the white squares to make every clue add up. Each run is a small number puzzle inside the larger grid.
How to Play
- Put digits 1–9 in white squares. A clue marked → gives the total for the white squares to its right; ↓ gives the total below.
- A digit may appear only once within each across or down run. The same digit can appear in different runs.
- Gold starter digits are fixed. Complete every run to solve a puzzle and move to the next one.
Strategy and Tips
- Start with short runs: two cells totaling 3 must contain 1 and 2.
- Use crossing clues to narrow each cell. If a run cannot reach its total, revisit a recent entry.
- Pencil in possible digits before committing to a difficult crossing.
Controls
KeyboardMouseTouch
Tap a square, then tap 1–9 or type a digit. Arrows move between squares. N toggles pencil notes; Z undoes; H reveals a hint; Delete clears. F opens fullscreen.
Background
Kakuro combines crossword-style crossing entries with arithmetic. These five handcrafted puzzles have a unique solution each.
Frequently Asked Questions
Can a number repeat?
Not within one horizontal or vertical run. A number may be reused elsewhere in the grid.