A Stylish Pocket-Sized Sudoku Challenge—Hard Puzzles for Solvers on the Go! Ready to put your Sudoku skills to the ultimate test? This Hard Sudoku Puzzle Book combines tough, brain-boosting puzzles with a sleek 4x6 travel size , making it the perfect challenge to carry anywhere. Slip it into your pocket, purse, or backpack and enjoy a serious mental workout on the go. Inside, you’ll find 100 hard-level Sudoku puzzles —each printed one per page for a clean, minimal layout with plenty of space to solve. These puzzles are designed for experienced players who love the thrill of cracking tricky grids. And for peace of mind, complete solutions are included at the back so you can check your progress anytime. With its glossy, minimalist cover , this book is not only functional but also stylish—making it a bold gift for Sudoku fans who want both brains and beauty in their puzzle collection. What Makes This Sudoku Book Special: Pocket Size (4x6”) – Compact and portable, perfect for solving anywhere. - 100 Hard Puzzles – Designed for experienced solvers who want a real challenge. - One Puzzle Per Page – Clean, uncluttered format with plenty of space to work. - Glossy Minimalist Cover – Sleek and stylish, a book you’ll be proud to show off. - Solutions Included – Full answer key at the back for confidence and convenience. - Gift-Ready Design – A thoughtful choice for puzzle lovers who enjoy stylish, portable books. Why Hard Sudoku Is Good for You: Boosts Brain Health – Sharpens memory, logic, and problem-solving skills. - Enhances Focus – Deep, challenging puzzles help train concentration. - Encourages Relaxation – Enter a mindful, focused state while solving. - Builds Patience & Persistence – Rewarding challenges that keep your brain engaged. - Supports Healthy Aging – A fun and effective way to keep the mind agile. ✨ Whether at home, on the train, or on vacation, this Hard Sudoku Pocket Edition is the perfect way to challenge your mind in style. Order your copy today and enjoy 100 bold and brain-boosting puzzles wherever you go!