Will Shortz Presents Easy to Hard Sudoku: 150 Fast, Fun Puzzles

If you haven't already discovered the number puzzle that The New York Post calls "diabolically addictive," you'll soon discover that playing sudoku is like eating potato chips: you can't stop with just one!
 
Here you'll find 150 puzzles--presented by New York Times crossword editor and bestselling author Will Shortz--to whet your appetite, boggle your brain, and improve your playing skills at any level. The object is to fill the puzzle grid with numbers so that every row, column, and three-by-three square contains the digits 1 through 9, without repeating. Once you get the hang of it, playing sudoku can be downright hypnotic as you work the numbers around the grid. And experts can enjoy the trying to solve the puzzles faster and faster!