Generate high-quality Classic 9x9 and Killer Sudoku books for Amazon KDP. Precision difficulties, automated solution keys, and print-ready PDF export.
Publishing Sudoku books on Amazon KDP requires clean vector grids, legible numbers, and verifiable single solutions. Our engine guarantees that every puzzle is 100% solvable without blind guessing.
Everything you need to produce best-selling Sudoku activity books without expensive desktop software.
The timeless standard. Calibrated difficulty algorithms ensure puzzles match expected difficulty curves precisely.
Combines Sudoku with arithmetic. Dotted cage outlines with target sum numbers. Highest royalty margins on KDP.
Zero duplicate answers. Each grid undergoes backtracking solver checks to ensure a 100% singular logical path.
Combine 30 Easy + 40 Medium + 30 Hard puzzles into a single unified 100-page interior PDF in one click.
Direct export matching Amazon KDP's exact gutter and margin standards. Zero PDF errors in KDP Print Previewer.
Keep 100% of all profits. Sell physical paperbacks on Amazon, Etsy printables, or digital downloads on Gumroad.
Stop paying high monthly subscriptions for basic black-and-white grids. Compare the features side-by-side.
| Feature | Puzzle Generator Pro | Book Bolt ($19.99/mo) |
|---|---|---|
| Free Tier | ✅ 1 Full Book / Day Free (Forever) | ❌ 3-Day Trial Only |
| Killer Sudoku (Sum Cages) | ✅ Full Support Included | ⚠️ Restricted / Complex |
| Export Quality | ✅ 300 DPI Vector PDF + SVG + 8000px JPG | ⚠️ Standard PDF (Bitmap Compression) |
| Automatic Solution Pages | ✅ 4-Up & 6-Up Formatted Keys at Back | ✅ Included |
| Commercial Rights | ✅ 100% Royalty-Free (KDP, Etsy, TPT) | ✅ Included |
| PRO Price | 🔥 $9.99 / month (Save 50%) | $19.99 – $29.99 / month |
Common questions from self-publishers and activity book designers.
Yes. Every puzzle and compiled PDF book carries full commercial use rights. You keep 100% of your book royalties with zero licensing fees.
For standard books, 1 puzzle per page on 8.5 x 11 in provides comfortable solving space for adults. For travel books, 6 x 9 in is the standard industry format.
Yes. Easy puzzles feature plenty of given clues and simple single-candidate logic, perfect for beginners and seniors. Hard and Expert levels require advanced elimination techniques.
Yes. Our margins adhere to Amazon KDP's bleed and gutter requirements. Hundreds of puzzle books built with our engine are currently live on Amazon marketplace.