Sudoku Printable Bundle D-Challenging
The sudoku printable bundles are categorized by degree of difficulty: easy, medium, hard, challenging and deluxe. Each category of sudoku puzzles will have many bundles of puzzles. For example: the challenging sudoku printables are bundled into 5 puzzles per bundle. Challenge yourself, family and friends to see who can be the first to complete either one puzzle, or the entire bundle!