What more could an avid Sudoku-solver want than a puzzle for almost every day of the year? Included are puzzles of varying levels of difficulty that will entertain and challenge any player of this popular logic game in Sudoku Desk Calendar! Difficulty of each puzzle out of 4 stars and a month-at-a-glance view are included on each page. A sudoku puzzle a day! Difficulty varies, with indicators of difficulty out of four on the top of each page.