Sudoku, or wordless crossword puzzles, have found millions of fans worldwide. Not only are they fun to solve, but their unique blend of logic is perfect for keeping your brain sharp all day long. And the special step-by-step solving guides found only in this volume allow you to quickly master all the different kinds of logic! So why not grab a pencil and see if you sudoku? Features: - 100 of the wordless crossword puzzles that are taking the world by storm!- Top-quality sudoku from easy to hard, edited by legendary puzzlemaster Will Shortz- Features sixteen pages of special step-by-step solving guides, plus an introduction from Will Shortz