Our best-selling series combines the power of Sudoku addiction with the elegance of the Pocket Posh line. "Pocket Posh(R) Sudoku 23" presents a beautiful book of 100 Sudoku puzzles in 3 difficulty levels. Superstition surrounds the enigmatic number 23, but you won't need luck or fate to solve the puzzles in our 23rd collection. Our 23rd Pocket Posh Sudoku puzzle book offers elegant, top-notch game playing. "Pocket Posh(R) Sudoku 23" 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 stylized, embellished covers and boasting 5 million copies in print. A free trial subscription to The Puzzle Society(TM) adds extra value.