What more could an avid Sudoku solver want than a puzzle for almost every day of the year? Here are puzzles of varying levels of difficulty that are designed to entertain and challenge any player of this popular logic game. Peter De Schepper and Frank Coussement met in 1995 and discovered that they shared a passion for creating games and contests. In 2000 they quit their day jobs, founded PeterFrank, and decided creating logic puzzles was what they wanted to do. Boxed calendars give you something new to ponder, enjoy, or just laugh about every day of the year. With a page for each weekday and a combined Saturday-Sunday page for each weekend, these boxed calendars have pages mounted on a sturdy plastic stand so they are perfect for putting on a desk or countertop.