The Guardian All-New Sudoku 1 : A collection of more than 200 fiendish puzzles

The Guardian's Sudoku puzzles are enjoyed by hundreds of thousands of people every day.Now is your chance to puzzle away the hours with 200 previously unpublished Sudoku in the first book in the new Guardian puzzle book series. With a variety of difficulty levels, from easy to fiendish, this book can be enjoyed by both the Sudoku novice and the puzzle master with years of solving experience.