Mastering Sudoku Puzzles Challenge Vol 1

You''re not really mastering Sudoku puzzles when you''re playing. Rather, you''re mastering the math skills required for you to solve the puzzles. Reserved for the advanced learners, this collection of Sudoku puzzles will challenge you non-stop until your problem solving and analytical skills, as well as logic, are good and strong. So if you''re up for the challenge, then answer a puzzle today!