Large-print sudoku puzzles

What’s inside

Ten puzzles, one to a page. Puzzles 1 to 5 are easy and puzzles 6 to 10 are medium. Each starts with a few fewer numbers than the one before, from 40 down to 30, so they get a little harder as you go. The answers are on pages 12 to 14, four to a page.

How to play sudoku

Fill every empty square with a number from 1 to 9, so that each row, each column and each 3 × 3 box holds every number from 1 to 9, once each. Some numbers are already there to start you off. There are no sums to do: the numbers are just symbols, and each puzzle has exactly one answer.

Tips for getting started

1. Look for a square where only one number can go. Check its row, its column and its box for the numbers already used.
2. Pick a number, say 5, and look at one 3 × 3 box. If there is only one square in that box where a 5 can go, write it in.
3. Use a pencil, and write small notes in the corner of a square if it helps.

The easy puzzles can be finished with the first tip alone. The medium ones need the second tip too.

How we check every puzzle

A computer search tried every possible way to fill each grid and found exactly one solution: the one in the answers. Each puzzle was also solved from start to finish by logic alone, the way a person would, so you never need to guess.

Made for easy reading

• Numbers are 35 to 36 point bold: about three times the size of newspaper print.
• Thick black lines mark the 3 × 3 boxes, with light lines between the squares.
• Big squares, with room for pencil notes.
• In the answers, the numbers each puzzle started with are in black, and the ones you fill in are in red.

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 the puzzles print clearly in black and white.
• For a group, print just the puzzle pages you need: page 1 lists them.

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.