Will Shortz Sudoku Desk Calendar: The worldwide numerical sensation remains the ultimate escape from the daily grind—all you need is a pencil! America's Puzzlemaster Will Shortz provides 365 all-new sudoku to test your mettle in the Will Shortz Presents Sudoku 2013 Day-to-Day Calendar—a full year of puzzle perfection! Can you sudoku? To solve or to savor, a daily sudoku puzzle guarantees at least some absolute order and perfect sense at least once in your day. Who wouldn't like more of that? UPC: 676728025078 EAN: 9780789325075