PuzzleForge: Sudoku Book Maker

PuzzleForge turns your iPhone into a complete sudoku book production studio. Generate hundreds of quality-guaranteed puzzles, lay them out as a real book, and export a print-ready PDF you can upload to Amazon KDP or hand out in class. QUALITY YOU CAN PUT YOUR NAME ON - Every puzzle is machine-verified to have exactly one solution - Four difficulty levels (Easy, Medium, Hard, Expert), judged by the solving techniques actually required - Puzzles and the answer key are numbered and matched automatically, so they can never drift apart - Stable seeds: the same book always regenerates the same puzzles BUILT FOR SELF-PUBLISHERS - Trim sizes: 6 x 9 in, 8.5 x 11 in, and A4 - Automatic gutter (binding margin) calculated from your page count, following KDP recommendations, with manual override - Title page, running headers, page numbers, and an answer key chapter, each one optional - Choose 1, 2, 4, or 6 puzzles per page - No watermarks and no app branding inside your PDF. The book is your product FAST, OFFLINE, PRIVATE - Generate up to 600 puzzles per book in one batch, with live progress and cancel - Preview every page exactly as it will print - Works completely offline. Your books never leave your device - Back up and restore all projects as a JSON file MADE FOR - KDP and other print-on-demand publishers creating low-content puzzle books - Teachers and tutors preparing difficulty-graded practice sheets - Anyone who wants to print a personal sudoku collection One-time purchase. No subscription, no ads, no sign-up.