Sadistic Sudoku

200 extremely difficult, hair-tearing hand-created puzzles at an irresistibly low price point of just $5.95. Tougher puzzles, better price.Tougher puzzles, more of them, and a better price by a master solver? From master gamesmith Arnold Snyder comes 200 extremely difficult, hand-created puzzles at an irresistibly low price point of just $5.95. As opposed to other popular books, all Sudoku puzzles presented are created by the author for consistency and quality--they are not computer generated.