---
title: "Free Kakuro generator with answers | Once Books"
description: "A free Kakuro generator that makes a printable cross-sums puzzle and its answer in one click. Every puzzle has exactly one solution, with no sign-up and no watermark."
source: "https://www.oncebooks.com/tools/kakuro-generator"
---

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3. Kakuro generator

Free tool

# Free Kakuro generator, with the answer

Pick a size and generate a cross-sums puzzle, then print it with its answer. Every puzzle has exactly one solution, with no sign-up and no watermark. It runs on the same engine as our KDP Publisher Studio.

PuzzleDesign

Difficulty

Bigger grids and longer runs are harder. Every puzzle has one solution.

6×6 grid. Fill each run with distinct digits 1 to 9 that add up to its clue.

Theme

ClassicBoldSoftShadedNavyIndigoSkyTealEmeraldForestPlumBerryCrimsonEmberAmberCocoa

**Customise colours**

Numbers

Cell lines

Box lines

Page background

Style

StandardClean

Clean drops the title band and footer, leaving the grid.

Generate puzzlePrint / save PDF

Two pages: the puzzle and its completed grid. Every puzzle has one solution, checked by the same engine as our KDP studio.

## Want the whole book?

This makes one puzzle. Sign up to turn it into a full Kakuro book for Amazon KDP: hundreds of graded cross-sums puzzles at any trim, as print-ready PDFs.

[Build the full book](https://app.oncebooks.com/publisher-studio/kakuro)

Free to build · pay once to export

Preview

The puzzle and its completed grid, as they print.

Hide the preview

- Kakuro Medium

  1

  Puzzle
- Kakuro Medium · Solution

  2

  Solution

Generate puzzlePrint / save PDF

## How to make a Kakuro

1. Pick a difficulty. Choose a grid size from a gentle 5 by 5 up to a 7 by 7. Bigger grids and longer runs mean more combinations to weigh.
2. Generate the puzzle. Press Generate puzzle. You get a fresh crossword-shaped grid with a sum clue for every run. Every puzzle is proved to have exactly one solution.
3. Print the two pages. Press Print / save PDF. You get two pages: the puzzle with its clues on page one and the completed grid on page two.

## Publishing a whole book?

This tool makes one puzzle for home or the classroom. To make a Kakuro book you can sell on Amazon KDP, Publisher Studio generates hundreds of graded cross-sums puzzles across a difficulty curve, at any KDP trim, as a print-ready interior and solutions PDF.

[See the KDP Kakuro maker](https://www.oncebooks.com/kdp-kakuro-maker)

## Questions

**What is a Kakuro?**

Kakuro, or cross-sums, is a crossword-shaped number puzzle. Fill each run of white cells with distinct digits 1 to 9 so the run adds up to the clue printed in the black cell before it. No digit repeats within a run.

**Is this Kakuro generator free?**

Yes. Pick a difficulty, generate a puzzle and print the grid plus its answer, with no sign-up and no watermark. It is free for classroom, home and personal use.

**Does every puzzle have one solution?**

Yes. Every puzzle is generated and checked by a solver so the clues fix exactly one grid of digits. A puzzle is never ambiguous or unsolvable.

**Does it include the answer?**

Yes. Every puzzle prints as two pages: the clues on page one and the completed grid on page two, so you can check your work.

**What size are the pages?**

The free tool prints at 8.25 by 11 inches, a popular large-print size. Our Publisher Studio will export the same book at any KDP trim, from 5.06 by 7.81 up to 8.27 by 11.69, as a print-ready 300 DPI interior.