8Celebrate the holidays while challenging the mind with this collection of 100 Sudoku puzzles, perfect for stuffing the stocking of a Sudoku puzzler. The seasonal tactile design with red flocking and green elastic bellyband makes the book a stylish accessory that looks great and fits nicely into a purse or a pocket. Pocket Posh Sudoku 4 is the perfect way to sharpen the mind and look great doing it.