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.
Larger grids have more cells to weigh. Every puzzle has one solution.
Customise colours
Clean drops the title band and footer, leaving the grid.
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.
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Preview
The puzzle and its shaded answer, as they print.
Making a whole Kakurasu book?
This page makes one puzzle. To publish a book on Amazon KDP, the 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
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.