Kakuro books for logic enthusiasts.
Generate cross-sum Kakuro puzzles with validated unique solutions. 7×7 to 15×15 grids, four difficulty levels, complete interior PDFs for Amazon KDP.
Validated Kakuro, every time.
Unique solution validation
Every Kakuro is verified to have exactly one correct solution before it enters your book.
Grid sizes 7×7 to 15×15
Beginner-friendly small grids through expert-level large puzzles.
Four difficulty levels
Easy, Medium, Hard, Expert — each with distinct logical techniques required.
Auto solutions
Solution grids included automatically at the back of every PDF.
Complete interior
Title page, instructions, how-to-play guide, all puzzles, and solutions — one PDF.
Commercial rights
Full commercial rights to publish and sell everywhere.
Kakuro book in three steps.
Choose difficulty mix
Select grid sizes and difficulty levels. Mix beginner and expert puzzles in one book.
Format your book
Choose page layout, puzzle count, and trim size. One or two puzzles per page.
Download & publish
Print-ready interior PDF + cover. Upload to Amazon KDP and start earning.
Start generating Kakuro books — free.
Get startedWhat is Kakuro?
Kakuro is a logic-based number puzzle that combines elements of crosswords and Sudoku. Players fill in cells with digits 1–9 so that each horizontal and vertical run adds up to the clue number, without repeating any digit within a single run. It's sometimes called "cross-sums" or "mathematical crosswords."
Why Create Kakuro Books?
Kakuro is a growing niche with dedicated fans who are hungry for new content. The low competition on Amazon makes it an excellent opportunity.
- Low competition niche on Amazon KDP
- Dedicated audience that buys multiple books
- Appeals to Sudoku fans looking for new challenges
- Easy to create progressive difficulty series
- Great for bundling with other number puzzles
Questions, answered.
Explore related puzzle tools
Publish your Kakuro book today.
No credit card required. Unlimited unique puzzles.