Medium Sudoku: Difficulty Sudoku Puzzle Book For Adults. 500 Puzzles, 9 X Sudoku, 4 Puzzles Per Page. Solutions To Included.

500 Sudoku Puzzles 5 Difficulty Levels: 4 Per Page Solutions Included Large...

500 Sudoku Puzzles Medium: 4 Per Page Solutions Included Large Print (Sudoku 500)

500 Sudoku Puzzles Hard: 4 Per Page Solutions Included Large Print (Sudoku 500)

500 Sudoku Puzzles Easy: 4 Per Page Solutions Included Large Print: 3 (Sudoku 500)