Sudoku Puzzle Book for Adults: 5000 Hard to Very Hard Puzzles with Full Solutions - Vol. 4 Paperback ? September 22, 2024 by Sudoku99 Team (Author)

Are you ready for the ultimate Sudoku challenge? The Sudoku Puzzle Book for Adults: 5000 Hard to Very Hard Puzzles with Full Solutions - Vol. 4 is designed for advanced solvers who enjoy testing their problem-solving skills. With 5000 puzzles ranging from hard to very hard, this book offers hours of brain-stretching entertainment for serious Sudoku enthusiasts.

Key Features:
- 5000 unique puzzles from hard to very hard difficulty levels
- Full solutions provided for quick reference and progress tracking
- Play online: Solve the same puzzles on Sudoku99.com by entering the Sudoku ID from the book
- Large 8.5 x 11-inch format for clear, easy-to-read puzzles.