Pocket Posh Sudoku 28 will help exercise your grey matter with 100 original Sudoku puzzles. Collect all 28 titles in the series! Our Pocket Posh Sudoku puzzle collection now offers more than two dozen different looks and unique Sudoku collections. Pocket Posh Sudoku 28 presents 100 fun and challenging Sudoku puzzles in three levels of difficulty and is perfect for puzzlers on the go. This portable package is part of a best-selling series featuring highly stylised, embellished covers and boasting 5 million copies in print. A free trial subscription to The Puzzle Society adds extra value.