Sudoku puzzles are a tantalizing challenge - and an excellent way to utilize your logical thinking skills. This book presents 2,002 Sudoku puzzles for you to solve (all 9 x 9), along with complete solutions in the final chapter. There are four levels of difficulty: super easy, easy, medium, and hard. Even better, we include four types of problems to truly challenge you: those with numbers, letters, symbols, and a combination of numbers and letters. By honing your skills on a wide range of problems, you will become a seasoned master of this wildly entertaining - and addictive - logic game!