Games / Sudoku
Every puzzle is generated when you ask for it and checked to have exactly one solution. That matters: a puzzle with two answers cannot be finished by logic, only by guessing, and there is no satisfaction in that.
Pencil marks work the way they do on paper — write a number in properly and it is rubbed out of every note in that row, column and box. Three hints per puzzle if you are stuck.
What is in it
One solution, always
Checked at generation, so logic is always enough.
Pencil marks
Notes tidy themselves up as you fill numbers in.
Four levels
Gentle, Steady, Awkward and Unkind.
Best times
Kept per level on your device.
Controls
Mouse and touch work the way you would expect. It can also be played entirely with a keyboard, or with a controller on a television.
| Action | Keyboard | Gamepad |
|---|---|---|
| Move | Arrow keys | D-pad |
| Number | Keys 1 to 9 | A cycles the value |
| Erase | Backspace or 0 | B / circle |
| Notes | N | Notes button |