Original Sudoku Page-A-Day® Calendar 2026

A year of Sudoku puzzles hand-crafted by Nikoli, the Japanese company that invented the game.

THE BEST SUDOKU: Every puzzle in this calendar is created by Nikoli, the best Sudoku makers in the world-not a computer-to balance toughness and solvability and keep you hooked.

TRAIN YOUR BRAIN: The week begins with the easiest puzzles and the difficulty increases day by day. Just in case you need them, solutions are printed on the back of the pages.

​NOW PLASTIC-FREE!: Page-A-Day® Calendars are environmentally friendly! Printed on responsibly sourced paper and 100% recyclable, with sturdy cardboard backers.

UK Delivery:

• Free delivery on all orders of £10 or more.
• £1.49 delivery fee on orders below £10.
• UK orders are shipped via Royal Mail 2nd Class.

International Delivery:

• Flat rate delivery charges vary by country.

Dispatch and Delivery Times:

• All orders are shipped from our warehouse in Northampton, UK within 48 hours of receipt during working hours.
• UK mainland orders typically arrive within 3-5 working days via Royal Mail 2nd Class.
• International estimated delivery times:
• Europe & Channel Islands: 7 to 10 working days
• USA: 7 to 15 working days
• Rest of the World: 9 to 21 working days

View our full delivery infomation here.