Book excerpt: When you buy this book you get an electronic version (PDF file) of the interior of this book. You can play the puzzles in this book on your mobile phone! Become a master in solving Wordoku. After solving all the puzzle in this book, you will be a Wordoku Pro. You start with easy Wordoku puzzle and you gradually build your way up to extremely difficult Wordoku puzzle. Once you pick up this book, you won't be able to put it back down. You have been warned! Only 1 large print puzzle per page, with lots of white space for scribbling. Wordoku 12x12 - Easy to Extreme is a collection of 276 puzzle: 54 easy Wordoku 12x12 puzzle 54 medium Wordoku 12x12 puzzle 54 hard Wordoku 12x12 puzzle 54 extreme Wordoku 12x12 puzzle 60 extra logic puzzle The goal of Wordoku is to fill in the empty cells, one letter in each, so that each column, row, and region contains each letter exactly once. I guarantee that every logic puzzle in this Wordoku puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzle in this book will appear in any of the other English PuzzleBooks.net books. Wordoku is also known as Wordoku, Alphabet Sudoku, Word Sudoku.