How fast can you Sudoku? Beat the clock with The Everything 15-Minute Sudoku Book!Are you ready for the next Sudoku challenge? Now you can take these incredibly addictive number puzzles to the next level! Look inside to the get the skinny on rules, strategy, and helpful advice that is sure to make you a master solver-then set your stopwatch and start puzzling! Puzzle expert Charles Timmerman offers you: —200+ puzzles for swift solving fun —Rules and key strategies explained —Tips and tricks to improve your solving time But don't worry if you can't solve each puzzle in fifteen minutes or less; by the time you finish this book, you'll be the speedy, speedier, speediest Sudoku solver around!