A big, new, original puzzle collection featuring the hot new puzzle craze, already running daily on the crossword pages of USA Today, The New York Post, The Los Angeles Times, The Washington Post, The Boston Globe, The Detroit Free Press, and many more to come."Crossword lovers, move over!"USA Today. "Fiendishly addictive."Time. Everyone can enjoy them. You don't need to be a math whiz to solve them. You need only a pencil to play.What are they? Logic puzzles that just happen to use numbers. All you do is fill in a grid so that every row, column, and 3 x 3 box contains the numbers 1 through 9 and there's only one solution to each puzzle!The Big Book of Su Doku #2 is even bigger and more challenging than #1, with 250 puzzles including basic 9 x 9 grids, followed by "Super" and "Maxi" puzzles (12 x 12 and 16 x 16 grids) plus the devilish "Samurai Su Doku" and with-a-twist "Irregular Su Doku." Read Less