67 books
Kingly Puzzles
Sudden Sudoku
Doctor Sudoku
Sudoku For Kings
Magnificent Sudoku
Sumptuous Sudoku Book
Sudoku For Seniors
Sudoku Beginner's Guide
Super-Sized Fun Sudoku
Sudoku Battle Of Intellect
Sudoku Companion
Easy To Hard Sudoku Puzzles For Adults
Sudoku For Brave Adults
The ABC Of Sudoku
Intense Sudoku Puzzles
Challenging Sudoku Books For Kids
Teaser Game
Sudoku for Small Children
Sudoku Battle Of The Mind
Sudoku For Wonder-Kids
Sudoku For Everyone
Sudoku for Masters
Sudoku Battle Of Veterans
Sudoku For Children