- Sudoku Puzzle book - 80 Sudoku grids - Large Print: Level of difficulty Hard - Sudoku puzzle game book for adults - volume 19 - 8.5x11 inches
- Sudoku Puzzle book - 212 Sudoku grids: Level of difficulty Hard - Sudoku puzzle game book for adults - volume 13 - 8.5x11 inches
- Sudoku Puzzle book - 80 Sudoku grids - Large Print: Level of difficulty Hard - Sudoku puzzle game book for adults - volume 21 - 8.5x11 inches
- Sudoku Puzzle book - 212 Sudoku grids: Level of difficulty Medium - Sudoku puzzle game book for adults - volume 16 - 8.5x11 inches
- Sudoku Puzzle book - 80 Sudoku grids - Large Print: Level of difficulty Hard - Sudoku puzzle game book for adults - volume 23 - 8.5x11 inches