Learn all the secrets to solving these perplexing puzzlers! Here are more than 65 puzzles to challenge you, with chapters that focus on single strategies for success. Our unique "pre-hinted" puzzles cut out the busywork, and our labeled puzzle grids make it easier to see patterns. Free use of the Sudoku Susser program, available online, is included. We supply the tips; you supply the smarts! Mechanical pencil with extra leads included. Measures 7-1/2? wide x 8-1/4? high. Ages 8 to 13.