It is time to enjoy one of the most popular games in the world! Sudoku is the perfect way to keep your brain active and spend hours relaxing and having fun . We've designed 1,000+ Sudoku Puzzles especially for you: Suitable for Intermediate and Advanced Sudoku Players Great variety of puzzles: 255 Medium, 255 Hard, 255 Expert and 255 Extreme Includes bonus puzzles: 5 Flower Sudoku Puzzles 6 puzzles per page 9 x 9 grid Solutions at the end of every level Perfect as a gift. Challenge yourself with Sudoku puzzles!