Sudoku is a fun and addicting logic puzzle game that has taken the world by storm. This book is ideal for you if you love to solve difficult Sudoku puzzles and want that little bit extra. You do not need to wade through tons of easy Sudoku 15x15 puzzles before getting to the real brain teasers. Once you pick up this book, you won't be able to put it back down. You have been warned Sudoku 15x15 - Hard is a collection of 276 puzzles:

• 216 hard Sudoku 15x15 puzzles
• 60 extra logic puzzles

I guarantee that every logic puzzle in this Sudoku puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzles in this book will appear in any of the other PuzzleBooks.net books. Sudoku is also known as Number Place, Nanpure, Su Doku. Quite often Sudoku is misspelled as Suduko, Soduko, Sodoku, Sudoko, Suduku and Soduku.