Hard Sudoku Puzzle Book for Adults: 200 Large Print Puzzles

Many hard level Sudoku puzzles have the potential to increase your brainpower. These puzzles stimulate your brain and allow you to improve your memory and problem-solving skills. Hard Sudoku puzzle book for adults is specially designed to provide you challenging but entertaining atmosphere. It contains 200 large print hard level Sudoku with solutions. ★Challenge yourself and get your copy of " " today.