With a mix of puzzle variations to challenge all levels, such as IRREGULAR, DIAGONAL, and SUM SUDOKU, each page of this daily calendar provides a unique puzzle to solve. Product Information:Dimensions: 5.2"H x 6"W x 1.5"DBinding Style: AdhesiveCalendar Start Date: January 2026Time Span: 365 Days (Box) Single Day Layout with Sat/Sun Weekend PagePaper Source: FSCPackaging: Box - Recycled CardboardInk Type: Soy-BasedCreative Artist: Conceptis Puzzles Additional Features:Contains Canadian Stat HolidayContains Lunar Cycle More Info: Publisher: Sellers Publishing, Inc. Item ID: 9781531944322 Language: English Country of Origin: CN