From the original publisher of daily sudokus in the U.S.,
USA TODAY presents 200 all-new sudoku puzzles in 5 difficulty levels.
USA TODAY Sudoku Super Challenge s a collection featuring 200 sudoku puzzles in five difficulty levels from
USA TODAY--the nation's no. 1 newspaper.
*Features include an introductory how-to section followed by 200 9 x 9 sudoku puzzles. A comprehensive answer key completes the collection.