Series:

Sudoku X

6 primary works

Book 5

Cover of Master of Puzzles Sudoku X - 200 Easy Puzzles 9x9 Vol.5

Book 6

Cover of Master of Puzzles Sudoku X - 200 Medium Puzzles 9x9 Vol.6

Book 7

Cover of Master of Puzzles Sudoku X - 200 Hard Puzzles 9x9 Vol.7

Book 8

Cover of Master of Puzzles Sudoku X - 200 Master Puzzles 9x9 Vol.8

Book 9

Cover of Master of Puzzles Sudoku X - 400 Easy to Medium Puzzles 9x9 Vol.9

Book 10

Cover of Master of Puzzles Sudoku X - 400 Hard to Master Puzzles 9x9 Vol.10