USA TODAY Sunshine Sudoku : 200 Puzzles
From the original publisher of daily Sudokus in the United States, USA TODAY presents 200 all-new Sudoku puzzle challenges in five difficulty levels. USA TODAY Sudoku Super Challenge 4 is a collection featuring 200 Sudoku puzzles in five difficulty levels from USA TODAY --the nation's no. 1 newspaper. Features include: Introductory how-to section 200 9 x 9 Sudoku puzzles Comprehensive answer key.