Sudoku puzzles are a tantalizing challenge - and an excellent way to develop and utilize your logical thinking skills. This publication presents 300 Sudoku puzzles that vary widely in their level of difficulty: Puzzles 1 - 75 are super easy Puzzles 76 - 150 are easy Puzzles 151 - 225 are medium Puzzles 226 - 300 are hard Start at the beginning and build your skills in this wildly entertaining - and addictive - logic game!.