The Everything 30-Minute Sudoku Book

It's time to throw your puzzle-solving skills into high gear with "The "Everything" 30-Minute Sudoku Book"! Packed with puzzles specially designed to challenge your solving speed, you'll find tips and tricks on learning the rules and strategies of Sudoku that will help you beat the clock! If you can't solve the puzzles in thirty minutes or less, have no fear-by the time you finish all these puzzles, you'll be a savier, swiftier solver!