Brad Forkes
200 Easy Sudoku Puzzles Volume 1- 200 Easy Sudoku Puzzles Volume 2
- 200 Easy Sudoku Puzzles Volume 3
- 200 Hard Sudoku Puzzles Volume 1
- 200 Hard Sudoku Puzzles Volume 2
- 200 Medium Sudoku Puzzles Volume 1
- 200 Medium Sudoku Puzzles Volume 2
- 200 Medium Sudoku Puzzles Volume 3
- 200 Very Hard Sudoku Puzzles Volume 1
- 200 Very Hard Sudoku Puzzles Volume 2
- 200 Very Hard Sudoku Puzzles Volume 3
- 200 Very Hard Sudoku Puzzles Volume 4