Ideal for Beginners
Standard 9x9 grids, unlimited projects, and unlimited puzzles per book. No watermarks.
For Serious Publishers
SVG Export, Custom Fonts, Legal Templates, and advanced generation modes.
Puzzle Generation
Guaranteed Uniqueness
Every Sudoku generated by Wisdom Effect is 100% unique and has never been used before. Our algorithm ensures a single, human-solvable solution for every grid.
Grid Sizes
Choose from Classic 9x9, or branch out with 4x4 and 6x6 (perfect for Kids Mode) and 16x16 for hardcore experts.
Difficulty Levels
From Easy, Medium, Hard, and Master (Starter) to Insane, Nightmare, and Inferno (Pro).
Mixed Difficulties
PRO feature: Include multiple difficulty levels within a single book to provide a progressive challenge for your readers.
Design & Customization
Custom Fonts
Upload your own .ttf or .otf files to match your brand's aesthetic. High-quality typography is key to KDP success.
Large Print Mode
Automatically enforce a minimum 16pt font size. Perfect for accessibility and reaching the senior market on Amazon.
Night Mode
Switch to a high-contrast nocturnal editing mode. Work comfortably in low-light environments without eye strain.
Color Palette
Full control over grid lines, numbers, and background patterns. Create stunning, multicolor interiors or classic black & white designs.
Book Structure
Special Pages
Automatically generate 'This Book Belongs To', Table of Contents, and Thank You pages with professional layouts.
Copyright Templates
Choose from 10 professionally drafted legal templates. Just enter your brand name and we handle the rest.
Custom Page Injection
Add your own custom-designed pages anywhere in the book. Perfect for cross-promoting other titles or adding special instructions.
Intelligent Numbering
Customizable page and puzzle numbering. Start from any number to manage multi-book series seamlessly.
Export & KDP Optimization
KDP Approval Ready
Our PDF engine is optimized for Amazon KDP print requirements. Generate unlimited puzzles per book while staying within KDP's technical limits.
Vector SVG Export
Export your puzzles as scalable vectors for infinite resolution. Ideal for professional designers using Adobe Illustrator or Canva.
Separate Files
Option to export Puzzles and Solutions as two independent PDF files, giving you total flexibility over your final book layout.
Compact Solutions
Save printing costs by rendering solutions as text. Fit up to 30 solutions per page without sacrificing readability.
Pro Tip for KDP Publishers
Always use our Large Print Mode when creating books for the 50+ age group. It automatically adjusts layouts to meet accessibility standards, significantly reducing your rejection risk and improving customer reviews.