---
title: "Hard Kakurasu: free printable with answers"
description: "Free printable hard Kakurasu with answers. A 6 by 6 grid with larger sums to balance. One shading, printed with the answer."
source: "https://www.oncebooks.com/kakurasu/hard"
---

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

Free printable

# Hard Kakurasu

A 6 by 6 Kakurasu gives the targets more cells to combine, so you work a row sum against the columns that share its cells. It still resolves to exactly one shading, printed on page two.

PuzzleDesign

Difficulty

Larger grids have more cells to weigh. Every puzzle has one solution.

6×6 grid. Shade cells so each row and column of shaded squares sums to its edge target.

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 shaded answer. 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 Kakurasu book for Amazon KDP: hundreds of graded puzzles at any trim, as print-ready PDFs.

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

Free to build · pay once to export

Preview

The puzzle and its shaded answer, as they print.

Hide the preview

- Kakurasu Hard

  1

  Puzzle
- Kakurasu Hard · Solution

  2

  Solution

Generate puzzlePrint / save PDF

## Making a whole Kakurasu book?

This page makes one puzzle. To publish a book on Amazon KDP, the [KDP Kakurasu maker](https://www.oncebooks.com/kdp-kakurasu-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 Kakurasu

- [Easy Kakurasu](https://www.oncebooks.com/kakurasu/easy)
- [Medium Kakurasu](https://www.oncebooks.com/kakurasu/medium)
- [Large Kakurasu](https://www.oncebooks.com/kakurasu/large)
- [Kakurasu for kids](https://www.oncebooks.com/kakurasu/for-kids)
- [Kakurasu for beginners](https://www.oncebooks.com/kakurasu/for-beginners)

[See every printable Kakurasu](https://www.oncebooks.com/kakurasu)

## Questions

**Are these hard kakurasu 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 generated and checked so the edge targets fix exactly one shading, verified before it prints. The answer is on the second page.

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

Yes. The free tool makes one puzzle. The KDP Kakurasu 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.