Large-print Christmas sudoku

What’s inside

Ten puzzles, one to a page, each with a Christmas star at the top. Puzzles 1 to 5 are easy and 6 to 10 are medium, and each starts with a few fewer numbers than the one before. The answers are on pages 12 to 14.

How to play

1. Fill every empty square with a number from 1 to 9.
2. Each row, each column and each 3 × 3 box must hold every number from 1 to 9, once each.
3. No sums are needed, and no guessing: every puzzle can be solved by looking.
4. Stuck? The answers at the back show the starting numbers in black and the rest in red.

A tip: pick a number, say 5, and look for the one box that still needs a 5 and has only one square where it can go.

Made for easy reading

• Numbers are 35 to 36 point bold: about three times the size of newspaper print.
• Big squares with room to write, and thick lines around each 3 × 3 box.
• Black on white, one puzzle to a page.
• Every puzzle has exactly one answer, checked by computer, so there is never any doubt.

Printing tips

• A4 suits most of the world. US Letter suits the United States and Canada.
• Print at Actual size or 100% if you can. Fit to page works too.
• Plain office paper is fine, and every page prints clearly in black and white.
• Use a pencil: it’s easy to rub out a wrong number.

Free to print and share

Print as many copies as you like, at home or for a care home, day centre, club or class. Please don’t sell these puzzles or put them on another website. Link to this page instead.