---
title: "Hard Kakuro: free printable with answers"
description: "Free printable hard Kakuro with answers. A 6 by 6 grid with longer runs and bigger sums to combine. One solution, printed with the answer."
source: "https://www.oncebooks.com/kakuro/hard"
---

1. [Home](https://www.oncebooks.com/)
2. [Kakuro](https://www.oncebooks.com/kakuro)
3. Hard

Free printable

# Hard Kakuro

A hard Kakuro keeps the 6 by 6 grid but allows longer runs, so a sum can split more ways and you lean harder on the crossings to pin each digit. It still resolves to exactly one grid, printed on page two.

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 Hard

  1

  Puzzle
- Kakuro Hard · Solution

  2

  Solution

Generate puzzlePrint / save PDF

## Making a whole Kakuro book?

This page makes one puzzle. To publish a book on Amazon KDP, the [KDP Kakuro maker](https://www.oncebooks.com/kdp-kakuro-maker) generates hundreds of graded puzzles at any trim, as a print-ready 300 DPI interior and solutions PDF. Generate once, export unlimited sizes.

## More printable Kakuro

- [Easy Kakuro](https://www.oncebooks.com/kakuro/easy)
- [Medium Kakuro](https://www.oncebooks.com/kakuro/medium)
- [Large Kakuro](https://www.oncebooks.com/kakuro/large)
- [Cross-sums puzzles](https://www.oncebooks.com/kakuro/cross-sums)
- [Kakuro for beginners](https://www.oncebooks.com/kakuro/for-beginners)

[See every printable Kakuro](https://www.oncebooks.com/kakuro)

## Questions

**Are these hard kakuro free to print?**

Yes. Generate the puzzle above and print it with its answer, at no cost and with no sign-up. It is free for classroom, home and personal use.

**Does every puzzle have one solution?**

Yes. Every puzzle is run through a solver so the clues fix exactly one grid of digits, verified before it prints. The answer is on the second page.

**Can I make a Kakuro book to sell on KDP?**

Yes. The free tool makes one puzzle. The KDP Kakuro maker generates hundreds of graded puzzles at any KDP trim, as a print-ready 300 DPI interior and solutions PDF, so you can publish a book.