Sudoku Kingdom
Sudoku Kingdom is an author and publisher of sudoku puzzle books. The author has published over 650 books on Goodreads featuring sudoku puzzles of varying difficulty levels, from easy to hard.
puzzles
sudoku
recreational mathematics
Pocket Sudoku Easy: 158 Easy Sudoku Puzzles | Pocket Sudoku Puzzle Books | Large Print Sudoku Puzzle Books For Adults | Sudoku For Seniors | Travel Size | Lavender Dreams
Pocket Sudoku Hard: 158 Hard Sudoku Puzzles with Solutions | Pocket Sudoku Puzzle Books | Large Print Sudoku Puzzle Books For Adults | Sudoku For Seniors | Travel Size | Golden Pattern