New
Clue Cross
Puzzle & Brain
Game preview
Gameplay coming later
This space is reserved for Sudoku. The page is a design prototype, so the game isn't playable yet.
01
How to play
- Pick an empty square in the grid.
- Enter a number from 1 to 9 that isn't already in that row, column or box.
- Use pencil marks to note possible numbers when you are unsure.
- Fill every square correctly to solve the puzzle.
02
Controls
Keyboard & mouse
- ←↑→↓
- Move between squares
- 1–9
- Enter a number
- N
- Toggle pencil marks
- Backspace
- Clear square
Touch
- Tap a square
- Select it
- Tap number pad
- Enter a number
- Tap pencil icon
- Toggle pencil marks
03
About
A tidy 9×9 grid and one simple rule: every row, column and 3×3 box must contain the numbers 1 to 9 exactly once. Start with the easy givens and let logic carry you to the last empty square. No guessing required.
04
Tips & tricks
- Scan for rows or boxes that are almost full first.
- If a number can only go in one place in a box, it must go there.
- Keep pencil marks tidy and erase them as soon as a number is placed.
05
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