Play Sudoku Online
Play unlimited free Sudoku puzzles with varying degrees of difficulty!
Sudoku is a great activity to sharpen the mind. The object of Sudoku is to fill in the empty spaces of a 9x9 grid with numbers 1-9 in such a manner that every row, every column and every 3x3 box contains all numbers 1 through 9. It's fun and challenging for all ages. We also have 4x4 Sudoku for younger kids and 16x16 Sudoku (Hexadoku) for the enthusiast who wants a real challenge!
Below you can choose to play 4x4, 9x9 or 16x16 puzzles. Difficulty levels are: Easy, Medium, Hard, Very Hard and EXTREME!
Our visitors can play:
| Sudoku | 4x4 | 9x9 | 16x16 |
| Easy | Free | Free | Free |
| Medium | Free | Free | Members |
| Hard | Free | Free | Members |
| V. Hard | Free | Free | Members |
| EXTREME | Free | Members | Members |
Premium Subscribers can get up to 50 lines, over 50 fonts, ability to add multiple images, create unlimited PDF's and Images of your worksheet and more.
Ad Blocking: Advertising provides the crucial revenue necessary to provide free content and applications on this website. We need this revenue to continue offering our free services. We currently have 3 options for our users:
- Ad blocking users:PRINT: Free, 1 printable puzzle per page (9x9 only, medium difficulty). PLAY: Play 9x9 Medium difficulty
- Non-ad blocking users:PRINT: Free, up to four (9x9) printable puzzles per page or one (16x16). PLAY: Play 4x4 (any difficulty), 9x9 (any difficulty except extreme), 16x16 (easy difficulty only)
- Premium Subscription: PRINT: Up to nine puzzles (9x9 and 4x4) or up to four 16x16 - any difficulty. PLAY: Any size and any difficulty. Over 100 fonts, and more options!
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The Teacher's Corner
Subscription Features include: