Classic Sudoku puzzle series
Each book in this series has large format grids with explanations of all the logical strategies needed to solve the puzzles and QR codes to allow playing the same puzzles online here at headscratcher.world. Available in both large-format A4 (two-per-page) and compact travel editions, ranging in difficulty from easy to hard puzzles.
Fun challenges for all ages — from kids to seniors — designed to reduce stress and sharpen your mind. Whatever your skill level, begin your quest to becoming a Sudoku Ninja!
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Large-Format books
Easy Sudoku Puzzles
250 Large-Format Brain Teasers with Playing Tips and Solutions
- Beginner-friendly: Designed for new and returning solvers.
- Learn by doing: Essential strategies explained with examples (Full House, Singles, Pointing, Claiming).
- Get started fast: 50 puzzles include pre-filled candidate notes to show how pros set up a grid.
- Two puzzles per page: Spacious A4 pages leave plenty of room for neat pencil marks.
- Paper + online: Scan a QR code for every puzzle to play digitally at headscratcher.world.
- Solutions included: Complete solution grids for every puzzle.
Medium Sudoku Puzzles
250 Large-Format Brain Teasers with Playing Tips and Solutions
- Intermediate-friendly: Designed for developing solvers.
- Learn by doing: All strategies explained with examples (includes Pointing, Claiming, Naked and Hidden Pairs).
- Get started fast: 50 puzzles include pre-filled candidate notes to show how pros set up a grid.
- Two puzzles per page: Spacious A4 pages leave plenty of room for neat pencil marks.
- Paper + online: Scan a QR code for every puzzle to play digitally at headscratcher.world.
- Solutions included: Complete solution grids for every puzzle.
Hard Sudoku Puzzles
250 Large-Format Brain Teasers with Playing Tips and Solutions
- Expert-level: Designed for experienced solvers.
- Learn by doing: Includes Triples, Quads, and X-Wing alongside Pairs, Pointing, and Claiming.
- Get started fast: 50 puzzles include pre-filled candidate notes to show how pros set up a grid.
- Two puzzles per page: Spacious A4 pages leave plenty of room for neat pencil marks.
- Paper + online: Scan a QR code for every puzzle to play digitally at headscratcher.world.
- Solutions included: Complete solution grids for every puzzle.
Compact Travel books
Easy Sudoku Puzzles
150 Compact Travel Brain Teasers with Playing Tips and Solutions
- Beginner-friendly: Designed for new and returning solvers.
- Learn by doing: Essential strategies explained with examples (Full House, Singles, Pointing, Claiming).
- Get started fast: 25 puzzles include pre-filled candidate notes to show how pros set up a grid.
- One puzzle per page: Spacious 5 × 8 in layout for neat pencil marks.
- Paper + online: Scan a QR code for every puzzle to play digitally at headscratcher.world.
- Solutions included: Complete solution grids for every puzzle.
Medium Sudoku Puzzles
150 Compact Travel Brain Teasers with Playing Tips and Solutions
- Intermediate-friendly: Designed for developing solvers.
- Learn by doing: All strategies explained with examples (includes Pointing, Claiming, Naked and Hidden Pairs).
- Get started fast: 25 puzzles include pre-filled candidate notes to show how pros set up a grid.
- One puzzle per page: Spacious 5 × 8 in layout for neat pencil marks.
- Paper + online: Scan a QR code for every puzzle to play digitally at headscratcher.world.
- Solutions included: Complete solution grids for every puzzle.
Hard Sudoku Puzzles
150 Compact Travel Brain Teasers with Playing Tips and Solutions
- Expert-level: Designed for experienced solvers.
- Learn by doing: Includes Triples, Quads, and X-Wing alongside Pairs, Pointing, and Claiming.
- Get started fast: 25 puzzles include pre-filled candidate notes to show how pros set up a grid.
- One puzzle per page: Spacious 5 × 8 in layout for neat pencil marks.
- Paper + online: Scan a QR code for every puzzle to play digitally at headscratcher.world.
- Solutions included: Complete solution grids for every puzzle.
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