Series:

Calcudoku

9 primary works

Book 3

Cover of Sudoku Calcudoku - 200 Easy to Medium Puzzles 6x6 (Volume 3)

Book 15

Cover of Sudoku Calcudoku - 200 Master Puzzles 9x9 (Volume 15)

Book 16

Cover of Sudoku Calcudoku - 200 Easy to Master Puzzles 9x9 (Volume 16)

Book 17

Cover of Sudoku Calcudoku - 200 Easy Puzzles 9x9 (Volume 17)

Book 18

Cover of Sudoku Calcudoku - 200 Normal Puzzles 9x9 (Volume 18)

Book 19

Cover of Sudoku Calcudoku - 200 Hard Puzzles 9x9 (Volume 19)

Book 20

Cover of Sudoku Calcudoku - 200 Master Puzzles 9x9 (Volume 20)

Book 21

Cover of Sudoku Calcudoku - 200 Easy to Normal Puzzles 9x9 (Volume 21)

Book 22

Cover of Sudoku Calcudoku - 200 Hard to Master Puzzles 9x9 (Volume 22)