Nobody Said This Was Easy! Sudoku 400 Suduko Puzzles for Teens and Adults

Whoever said solving Sudoku puzzles is easy? In the beginning, it's going to be quite challenging because you haven't figured out the right strategy yet. You will be spending hours analyzing and honing your problem solving skills. But once you've figured it out, you will find that solving a Sudoku puzzle in 30 minutes is actually doable. Good luck!