Inside you will find:
110 Hard Sudoku puzzles
110 Very Hard Sudoku puzzles
110 Extremely Hard Sudoku puzzles
Solutions to puzzles Included at the back of the book.
Perfect gift for anyone who loves Hard Sudoku
If you are looking for more Sudoku and other puzzles, see our PuzzleProof author page for more amazing Sudoku for all skill levels.
Related Subjects
Games