The puzzler will be presented progressively more difficult puzzles to solve in order to master Sudoku. The format is provided to teach the student/puzzler the art and skill of solving these puzzles by providing 500 plus Sudoku (standard 9x9 grid) puzzles of increasing solution complexity. The first 100 puzzles, 1-100, are 'practice' to prepare for the training puzzles that require more advanced solving techniques, puzzles 101-500. These practice puzzles...