Sudoku Challenge 200 Medium to Challenging to Diabolical Puzzles!

Sudoku is Japanese for number place but no knowledge of Japanese or scary math is required to become addicted to the puzzle that's sparked a worldwide craze. A game of pure logic, puzzles are completed so that each row, column, and box contains the numbers 1 through 9 exactly once, using given numbers as guides. For this jam-packed collection, Uncle John tapped into the talents of leading puzzle experts whose work has appeared in everything from The New York Times and The Washington Post to People and Games Magazine.