🧮 Kakuro
A crossword of sums — fill runs to their totals with no repeats.
SIZE
TIME 0:00BEST —
How to play Kakuro
- Press New Game. The → clues sit at the left of each row, the ↓ clues above each column.
- Fill every white cell with a digit from 1 to 9.
- Each row must add up to its → clue and each column to its ↓ clue.
- No digit may repeat within the same row or column. Tap a cell, then a number.
Controls
| Input | Action |
|---|---|
| Tap a cell | Select it |
| Tap a number / press 1-9 | Place it |
| 0 or Backspace | Clear the cell |
| Ctrl+F | Enter or leave full screen |
Tips & strategy
- Low and high sums are the easiest to crack — few digit combinations fit them.
- Pencil the possible digits for each run in your head, then use the crossings to pin them.
- A digit already in a row or column can't appear again in it, which narrows the sums fast.
- Work the cells where a row clue and a column clue both squeeze the options.
Frequently asked questions
How is Kakuro different from Sudoku?
Instead of fixed boxes, each run of cells has a target sum, and the only no-repeat rule is within a single run.
Can a digit repeat in the grid?
Yes, just not within the same horizontal or vertical run.
How is my score tracked?
Your record is the fastest solve time, saved per grid size.