Dragonfly Point’s Hard Difficulty Sudoku Book is perfect for you! With 600 unique puzzles, this book will keep you entertained for hours on end.
The large, 8.5 x 11 pages make it easy to see the puzzles and the extra space between and around the puzzles makes it easier to solve them.
The clear, black print on white pages makes solving the puzzles a breeze. Solutions for each puzzle are included in the back of the book.
