From the original publisher of daily sudokus in the U.S., USA TODAY presents 200 all-new sudoku puzzle challenges in 5 difficulty levels.USA TODAY Sudoku Super Challenge
is a collection featuring 200 sudoku puzzles in five difficulty levels from USA TODAY
—the nation's no. 1 newspaper.
- Introductory how-to section
- 200 9 x 9 sudoku puzzles
- Comprehensive answer key