Hit the jackpot with "Pocket Posh Sudoku 21." This "lucky" 21st title in the series offers 100 fun and challenging Sudoku puzzles in three levels of difficulty. "Pocket Posh Sudoku 21" is perfect for puzzlers looking for a quick and engaging puzzle to complete.This portable package is part of a best-selling series featuring highly stylized, embellished covers and boasting 5 million copies in print. A free trial subscription to The Puzzle Society adds extra value."