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Free Printable Sudoku Puzzles

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Free Printable Sudoku Puzzles (Easy to Expert, with Answers)

Printable sudoku puzzle sheets on a desk with a pencil

148 free printable sudoku puzzles in seven packs: easy, medium, hard and expert 9×9 puzzles four to a page, a large print pack with one big grid per page, and 4×4 and 6×6 sudoku for kids. Every puzzle has exactly one solution, and the answer keys are at the back of each PDF.

Each pack prints on US Letter or A4 with plain black numbers and thin grey lines, so it uses very little ink. Want something different? Make your own with the sudoku generator.

Easy printable sudoku puzzles, four per page

Easy sudoku

24 puzzles with 38 clues each — solvable by simple elimination. A good warm-up and a gentle start for beginners.

Medium printable sudoku puzzles, four per page

Medium sudoku

24 puzzles with 31 clues. You will need to scan rows, columns and boxes for the one place a number can go.

Hard printable sudoku puzzles, four per page

Hard sudoku

24 puzzles with 27 clues that cannot be finished by spotting singles alone.

Expert printable sudoku puzzles, four per page

Expert sudoku

24 puzzles with 24–26 clues that need pencil marks and patience.

Large print sudoku, one puzzle per page

Large print sudoku

12 easy puzzles, one big grid per page with large numbers — easy on the eyes.

6x6 sudoku for kids printable

6×6 sudoku for kids

16 puzzles using the numbers 1–6 in 2×3 boxes. The step up from 4×4.

4x4 sudoku for kids printable

4×4 sudoku for kids

24 tiny puzzles using 1–4 — perfect for ages 5 to 7 learning the rules.

How to play sudoku

  1. Fill every empty square. In a 9×9 puzzle use the numbers 1 to 9; in the kids puzzles use 1–4 or 1–6.
  2. No repeats. Each number appears once in every row, once in every column and once in every bold box.
  3. Look for the easy ones first. Find a row, column or box that is nearly full and work out which number is missing.
  4. Use pencil marks. On hard and expert puzzles, write small candidate numbers in the corner of a square and rub them out as you go.

Which level should I print?

  • Ages 5–7: 4×4 sudoku for kids.
  • Ages 7–10: 6×6 sudoku, then easy 9×9.
  • New to sudoku: easy, or large print if you prefer big numbers.
  • Daily solvers: medium and hard.
  • Looking for a challenge: expert.
Free for home, classroom and care-home use. Print as many copies as you need. Please link to this page rather than re-uploading the files, and do not sell them.

Questions

Do the puzzles have answers?

Yes. Every PDF ends with answer pages, numbered to match the puzzles.

Does every puzzle have only one solution?

Yes. Each puzzle was checked by a solver to make sure there is exactly one answer.

What makes a sudoku hard?

Fewer starting numbers, and puzzles where you cannot just spot the one missing number — you have to rule out candidates in several places at once.

Is large print sudoku good for seniors?

Yes. The large print pack has one grid per page with numbers about twice the usual size, and uses easy puzzles.

Can I make my own sudoku?

Yes — the sudoku generator makes new puzzles at any level and prints them with answers.

More free puzzles

Free printable sudoku puzzles – easy, medium, hard, expert, large print and kids
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