BUY THE BOOK
St. Martin's Griffin
St. Martin's Press
ISBN: 9781250049278320 Pages
Barnes & Noble
Watch out! These Sudoku puzzles are not for the faint of heart! But if you dare, grab a pen and take on these two hundred all-new extra-challenging puzzles.
200 hard puzzles
Big grids for easy solving
Introduction by legendary puzzlemaster Will Shortz
Throughout the history of puzzles and games, many of the biggest successes have come as complete surprises, because they've broken all the "rules."
Parker Bros. famously turned down the rights to the game Monopoly...