Only the bravest sudoku solvers should take on this collection of all-new deviously difficult puzzles. This is the perfect collection to put your solving skills to the test!
Features: 200 hard puzzles
Big grids for easy solving
Introduction by New York Times crossword editor Will Shortz
About the Author
Will Shortz has been crossword editor of The New York Times since 1993. He is also the puzzlemaster on NPR's Weekend Edition Sunday and the founder and director of the annual American Crossword Puzzle Tournament.