Everything a sudoku book needs
Never sold twice
Puzzles come from a bank of verified sudoku and are retired the moment you export them, so no other publisher ever gets the same grids.
4×4 to 16×16 grids
Mini 4×4 and 6×6 sudoku for kids, the classic 9×9 and giant 16×16 puzzles — even mixed in one book.
7 difficulty levels
Easy, Medium, Hard, Master, Insane, Nightmare and Inferno, with custom quantities per level and page breaks between them.
Kids & Large Print editions
Small grids and big digits for children, one large-print 9×9 per page for seniors.
Up to 20 puzzles per page
One big puzzle or up to 20 small ones per page, shaded box patterns, your fonts and colors.
Answer keys included
Solution pages in the back of the book with up to 20 solutions per page, numbered to match the puzzles.
Print-ready for KDP
5×8, 5.5×8.5, 6×9, 6.14×9.21, 7×10, 8×10, 8.5×11, 8.27×11.69, 8.5×8.5 trim sizes with automatic gutter and safe margins, page numbers, table of contents and PDF, PNG or SVG export.
How to create a sudoku book
- 1Choose the Sudoku book type and an edition (Standard, Kids or Senior).
- 2Pick grid sizes, difficulty levels and how many puzzles you want of each.
- 3Design the pages in the editor — fonts, colors, box shading, title and copyright pages.
- 4Export a print-ready PDF with answer keys and upload it to Amazon KDP.
Sudoku book FAQ
Can I sell sudoku books made with Wisdom Effect on Amazon KDP?
Yes. Books generated on paid plans and with credit packs include a full commercial license, and you keep 100% of your royalties.
Which plans include sudoku books?
Sudoku books are part of every paid plan — Starter, Pro and Publisher — and of the free trial. Every plan has every sudoku option: all grid sizes, all seven levels and several sizes or levels in one book.
Are the sudoku puzzles unique?
Yes. Every puzzle is verified and permanently retired from the bank when you export it — no two publishers ever receive the same sudoku.
Which grid sizes and difficulty levels are available?
4×4, 6×6, 9×9 and 16×16 grids in seven levels from Easy to Inferno. Every plan includes every size and level, and one book can mix several of them.
How many credits does a sudoku book cost?
One credit per puzzle; Insane and Nightmare cost 2 and Inferno 3 credits. Re-exporting the same book with design changes is free.
Can I make sudoku books for kids or seniors?
Yes. The Kids edition uses 4×4 and 6×6 grids with big digits; the Senior edition prints one large-print 9×9 per page.
Can I combine sudoku with other puzzles?
Yes. Mixed books can contain Sudoku, Wordoku, Word Search, Maze, Word Scramble, Cryptogram and Missing Vowels chapters in any order. Every plan makes mixed books from the puzzle types it includes: Starter mixes Sudoku, Word Search, Maze and Missing Vowels, Pro adds Word Scramble and Cryptogram, and Publisher adds Wordoku.
Can I make sudoku books in German, French, Spanish, Japanese or other languages?
Yes, on the Publisher plan and in the free trial. Pick one of 10 book languages, one for each Amazon marketplace: English (amazon.com, amazon.co.uk, amazon.ca, amazon.com.au, amazon.in), German (amazon.de), French (amazon.fr), Spanish (amazon.es, amazon.com.mx), Italian (amazon.it), Dutch (amazon.nl), Brazilian Portuguese (amazon.com.br), Japanese (amazon.co.jp), Polish (amazon.pl), Swedish (amazon.se). Wisdom Effect then prints the texts it writes into the book in that language: puzzle and solution titles, chapter headings, the table of contents, difficulty labels, the copyright page (10 legal templates), the intro and thank-you pages and the labels on the puzzle pages, seasonal editions included. The grids are numbers, so the puzzles need no translating. Texts you write yourself are not translated, so write them in the book's language. Starter and Pro books are printed in English.
Free printable generators
Free Sudoku Generator
Printable 4×4, 6×6 and 9×9 sudoku in Easy, Medium or Hard, with an answer key.
Free Maze Generator
Classic mazes and mazes for kids, freshly generated for every PDF, with solutions.
Free Word Scramble Generator
Word scramble worksheets from five themes or your own spelling words, with answers.
Free Missing Vowels Generator
Fill-in-the-vowels worksheets from five themes or your own spelling words, each word with one right answer.
Free Cryptogram Generator
Cryptograms from your own quotes or themed word lists, each checked to have exactly one solution.
Free Wordoku Generator
Letter sudoku where one row spells a hidden word — 9×9 or small grids for kids, with your own words and answers.
Free Word Search Generator
Word search puzzles from five themes or your own word list, for kids and adults, with answers.
Free Duplicate Word Remover
Remove duplicate words from any list, strip accents and see how often each word repeated.
Free Word Counter
Count words, characters, sentences and chapters and estimate your book’s page count for KDP.
Free QR Code Generator
Make QR codes for links, text and images — with your colors, logo and a caption, one by one or in bulk.
Free KDP Royalty Calculator
See your royalty per copy on Amazon KDP — printing cost, the 60 % price point, Expanded Distribution and Kindle 35 % vs 70 %.
Free KDP Profit Calculator
Your real KDP profit: royalties minus ads, software and one-time costs — with break-even and the ACoS your ads can afford.
Free KDP Spine Width Calculator
Exact spine width and full cover size with bleed for any KDP paperback — plus a cover template to download.
Free KDP Cover Size Calculator
Cover dimensions for every KDP format — paperback with bleed, hardcover with wrap and hinge, and Kindle eBook.
Start your first sudoku book
Sudoku, Wordoku, Word Search, Mazes, Word Scrambles and Missing Vowels — alone or combined in one mixed activity book.