Home › About
About Playoku
Playoku is a free online Sudoku game built around one idea: open the page and start solving — instantly, on any device, with nothing in your way.
What you get
- Three grid sizes: 4×4, 6×6 and the classic 9×9.
- Four difficulty levels: Easy, Medium, Hard and Expert.
- Real solving tools: pencil notes, hints, undo/redo and full keyboard support.
- Quality puzzles: every board is generated fresh and has exactly one solution, reachable by logic alone.
- Shareable links so you can race a friend on the identical puzzle.
- Dark mode and auto-save — close the tab and pick up where you left off.
How difficulty works
Rather than counting clues, Playoku grades each puzzle by the hardest logical technique it actually requires — so an "Easy" board really is easy, and "Expert" really will test you. Learn those techniques in our tips & strategies guide, or start with how to play Sudoku.
Free, forever
Playoku is completely free and needs no account. Got feedback or a bug to report? We'd love to hear from you — head to the contact page.