Sudoku "the crossword with words" comes with a warning: it is seriously addictive. Ultimate Grab A Pencil Book ofSudoku is simply a must have for puzzle connoisseurs everywhere. Whether you are new to these super popular puzzles or already hooked, get set to enjoy this wonderful collection. Packed with almost 700 mind twisting, sanity testing puzzles of varying levels, from ego boosters to mind bogglers to the dauntingly difficult, this book is sure to provide hours of fun and entertainment. There are even 94 special challenger puzzles for the accomplished Sudoku solver. These simple to learn but hard to master puzzles are perfect for all ages and abilities. So grab a pencil and get ready to take on this ultimate compilation of numerical brainteasers!