Extreme Sudoku: 100 Extremely Difficult Puzzles (Super Hard Sudoku Puzzle Books)

100 Extreme Sudoku PuzzlesSpecifically designed for above-average Sudoku players, this book will keep you busy for countless hours. You have been warned! It contains 100 challenging Sudokus that will sharpen your mind. All the puzzles have only one and unique solution. Solutions are included on the back pages.Features: 100 extreme Sudokus with solutions1 puzzle per page in Large PrintEasy to tear out with wide inner marginsPremium Matte cover8.5″ x 11″ page dimensions Perfect gift for advanced Sudoku players.