200 Difficult Sudoku Puzzles Book

Sudoku is the number-placing puzzle that is spreading across the world. The rules are simple, you don't need to know any mathematics, all you need is logic. The puzzles in this book do not require any guessing. They can, and should, be solved by logic steps. This book contains 200 difficult Sudoku puzzles, including solutions and clues. All of the puzzles in this book are made by hand and carefully tested to make sure they are difficult but not impossibly so. You should be able to solve one of the puzzles in under 30 minutes. That means this book can keep you occupied for up to 100 hours! The book also includes a few examples on how to solve Sudoku puzzles to get you started in case you've bought this book without ever having solved a Sudoku before. If that is the case, the clues may also be of help. However, this book is intended for the reasonably experienced Sudoku player.Read More