Hard Sudoku Book — 50 Printable Puzzles
A compact book of around 50 hard sudoku puzzles, ready to print or save as a PDF, with all the solutions in the back. Hard puzzles call for real technique, so even this slim pack will keep a confident solver thinking — perfect for a flight or a focused weekend.
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Difficulty level
Puzzles per page
Puzzle pages
48 puzzles
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Frequently asked questions
- How big is a 50-puzzle sudoku book?
- It's a slim, take-anywhere book — roughly a week or two of daily solving. The puzzles sit a few to a page, so it's light enough to slip into a bag for a trip or a commute.
- Are these hard sudoku suitable for beginners?
- They're a real challenge — hard puzzles need techniques like hidden pairs and pointing pairs. If you're just starting out, try the easy or beginner book first, then read our solving guides before tackling these.
- Does this hard sudoku book include the solutions?
- Yes. Your hard sudoku book PDF ends with a full solutions section, and the cover carries a QR code that opens the exact answers online — so you can always check a tricky grid.
How to solve these
New to a technique? Read the step-by-step rules and solving guides.
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