Free online puzzles, printable PDFs and answer keys.
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Printable Sudoku

Printable sudoku puzzles with notes, hints and checking online, plus print-ready solutions. Each activity includes online play, a downloadable puzzle and matching answer material.

100 complete pagesOnline + PDFProgress saved locally
Actual numbers Sudoku activity preview from this puzzle page
SUDOKUEasy

Easy Sudoku

A beginner-friendly 9×9 Sudoku with notes, hints, answer checking and a printable solution.

12 minOnline + PDF
Actual numbers Sudoku activity preview from this puzzle page
SUDOKUMedium

Medium Sudoku

A balanced 9×9 Sudoku for regular solvers. Play online, take notes or print the puzzle.

20 minOnline + PDF
Actual numbers Sudoku activity preview from this puzzle page
SUDOKUEasy

Large-Print Sudoku

An easy Sudoku with larger cells, clear numbers and a printer-friendly answer sheet.

15 minOnline + PDF
Actual numbers Sudoku activity preview from this puzzle page
SUDOKUHard

Hard Sudoku

A more demanding 9×9 Sudoku with notes, checking, limited hints and a printable solution.

30 minOnline + PDF
Actual numbers Sudoku activity preview from this puzzle page
SUDOKUEasy

Sudoku for Beginners

A gentle 9×9 grid with many starting numbers, notes, hints and a matching solution.

12 minOnline + PDF
Actual numbers Sudoku activity preview from this puzzle page
SUDOKUMedium

Sudoku for Adults

A medium-difficulty Sudoku designed for a focused ten-to-twenty-minute break. Solve the 9×9 grid online with notes and checking, or print the puzzle with its complete solution.

21 minOnline + PDF
Actual numbers Sudoku activity preview from this puzzle page
SUDOKUHard

Hard Sudoku Challenge

A sparse, demanding 9×9 puzzle with a verified unique route to the supplied solution.

32 minOnline + PDF
Actual numbers Sudoku activity preview from this puzzle page
SUDOKUHard

Expert Sudoku

A difficult Sudoku for experienced players who prefer fewer starting clues. Solve the 9×9 grid online with notes and checking, or print the puzzle with its complete solution.

38 minOnline + PDF
Actual christmas Sudoku activity preview from this puzzle page
SUDOKUMedium

Christmas Sudoku

A medium Sudoku included in the Christmas puzzle collection, with online play and PDF solution.

20 minOnline + PDF
Actual numbers Sudoku activity preview from this puzzle page
SUDOKUEasy

Sudoku for Kids

A large-print, extra-easy 9×9 sudoku with plenty of starting numbers, built to teach children the row, column and box rule step by step.

15 minOnline + PDF
Actual number logic Sudoku activity preview from this puzzle page
SUDOKUMedium

Sudoku Round 14

Fixed Sudoku round 14: a medium 9×9 grid with notes, answer checking and a matching printable solution.

20 minOnline + PDF
Actual number logic Sudoku activity preview from this puzzle page
SUDOKUHard

Sudoku Round 15

Fixed Sudoku round 15: a hard 9×9 grid with notes, answer checking and a matching printable solution.

30 minOnline + PDF
Actual number logic Sudoku activity preview from this puzzle page
SUDOKUEasy

Sudoku Round 16

Fixed Sudoku round 16: a easy 9×9 grid with notes, answer checking and a matching printable solution.

12 minOnline + PDF
Actual number logic Sudoku activity preview from this puzzle page
SUDOKUMedium

Sudoku Round 17

Fixed Sudoku round 17: a medium 9×9 grid with notes, answer checking and a matching printable solution.

20 minOnline + PDF
Actual number logic Sudoku activity preview from this puzzle page
SUDOKUHard

Sudoku Round 18

Fixed Sudoku round 18: a hard 9×9 grid with notes, answer checking and a matching printable solution.

30 minOnline + PDF
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