Kakuro

Free

A crossword made of numbers. Each run of white cells, across or down, must add up to the clue at its start, using the digits 1 to 9 with no digit twice in a run. Every puzzle has exactly one answer, checked by a solver. Eight puzzles from 5×5 to 8×8, with a hint button when you're stuck.

Controls: Tap or click a cell, then a number on the pad (or type 1–9; 0 or Backspace clears). Arrow keys move between cells. H gives a hint, which costs points.

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How to play Kakuro

Kakuro is a number crossword. Each run of white cells adds up to its clue, and no digit repeats in a run.

Controls: Tap or click a cell, then a number on the pad (or type 1–9; 0 or Backspace clears). Arrow keys move between cells. H gives a hint, which costs points.

Tips

  • Some sums have only one set of digits: 3 in two cells is always 1 + 2, 4 is 1 + 3, 16 is 7 + 9 and 17 is 8 + 9. Start there.
  • Where an across run and a down run cross, the digit must belong to both. That often leaves only one choice.
  • Long runs with big sums leave out only the small digits. 45 in nine cells uses every digit once.
  • Runs turn red when a digit repeats or the sum is wrong, so mistakes show at once.
  • Hints fill a cell for you but cost points. Use them only when you're stuck.

Questions

Is Kakuro free?
Yes. Kakuro is free to play online, and you can start straight away as a guest without signing up.
Do I need to download Kakuro?
No. It runs in your web browser, so there is nothing to install.
Can I play Kakuro on my phone?
Yes. It works in the browser on phones and tablets as well as on computers.

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