202 books • 15 series
Turn On The Logic Killer Sudoku - 200 Hard Puzzles 9x9 (10) (Killer Sudoku Puzzle Book, #10)
Turn On The Logic Killer Sudoku - 200 Easy Puzzles 9x9 (4) (Killer Sudoku Puzzle Book, #4)
Turn On The Logic Killer Sudoku - 200 Easy Puzzles 9x9 (3) (Killer Sudoku Puzzle Book, #3)
Turn On The Logic Killer Sudoku - 200 Normal Puzzles 9x9 (6) (Killer Sudoku Puzzle Book, #6)
Turn On The Logic Killer Sudoku - 200 Hard Puzzles 9x9 (12) (Killer Sudoku Puzzle Book, #12)
Turn On The Logic Killer Sudoku - 200 Master Puzzles 9x9 (13) (Killer Sudoku Puzzle Book, #13)