Tom Handy
200 Challenging Sudoku Puzzles
Sudoku 200 Medium Giant Size Puzzles
Sudoku : 1,000 Easy Puzzles
Sudoku : 1,500 Easy Puzzles
Sudoku : 600 Puzzles. 300 Easy and 300 Medium
Higgins Hunts Holland
Sudoku 1,200 Easy Puzzles
Sudoku 1,200 Hard Puzzles
Sudoku 1,200 X-Hard Puzzles
Sudoku 200 Easy Giant Size Puzzles
Sudoku 200 Easy Puzzles
Sudoku 200 Hard Giant Size Puzzles