Pocket Posh Sudoku 13 features a chicly styled cover, making it a smart, sophisticated accessory that goes with anything. Packaged in a handy 4 x 6 size, Pocket Posh Sudoku 13 fits nicely into a purse or tote. Pocket Posh Sudoku 13 contains 100 addictive sudoku puzzles, and is perfect for puzzlers looking for a quick and engaging puzzle to complete. With more than 5 million copies in print, the Pocket Posh puzzle series is a great way to exercise your mind--and look great while doing it! A free trial subscription to The Puzzle Society adds extra value.