Sudoku Puzzle Book, 300 Hard Puzzles: 300 SUDOKU Puzzle Hard Difficulty, 3 Sudoku Puzzle every Page With Solutions in the end, sudoku difficult, size

This Sudoku Puzzle Book, 300 Hard Puzzles paperback Notebook has 300 Hard difficulty All solutions included, hours of puzzling, Grab your pencil and have fun playing 6 sudoku puzzle per page. Solutions at the end, measuring at 6 x 9 inch.