The first newspaper in the United States to publish addictive Sudoku puzzles, USA TODAY continues to satisfy puzzle lovers with this second Sudoku book collection, USA Today Everyday Sudoku: 200 Puzzles from The Nation"s No. 1 Newspaper.Features include an introductory how-to section followed by two hundred 9 x 9 Sudoku puzzles targeting five different levels of difficulty. A comprehensive answer key completes the collection.