The ideal Holiday gift for the Sudoku enthusiast, with 480 NEW puzzles ranging in difficulty from easy through hard to cruel and deadly. All puzzles are large format with plenty of space for calculations and notes. Whoever you give this book to will be entertained for hours on end. As they attempt to complete the puzzles, their emotions will range from love, to hate and every shade in between. If you are looking for the perfect gift to keep them thinking of you throughout the holiday season and beyond; then you have got to buy this book. The quick puzzles will take a couple of minutes to complete, while the nasty and cruel puzzles will have them head scratching and pencil chewing. As for the deadly ones - don't say I didn't warn you They may end up crying for help or begging for mercy in their attempts to solve the toughest of these puzzles. The BUYSUDOKUBOOKS.COM guarantee. Often you find sudoku books with puzzles that have more than one solution. This can waste a lot of time and drain a fair amount of ones sanity when it comes to solving a puzzle. Have no fear To ensure minimum frustration, every puzzle in this book has been carefully checked and is guaranteed to have only one solution.