Sudoku Puzzle Books Series 2
3 primary works
Book 11
Sudoku Puzzle Book, 400 Puzzles, 200 HARD and 200 Extra EXTRA HARD
by Sudoku Puzzle Books
Published 13 March 2017
Book 30
Book 37
Sudoku Puzzle Book, 1,000 Puzzles, 500 MEDIUM and 500 HARD
by Sudoku Puzzle Books
Published 19 January 2017