How to play Sudoku
Fill the grid so every row, column and box holds one to nine, once each.
These are the rules for the PlayBurst version. Other versions may play differently.
Rules and controls
1. Read what is given
The numbers on screen at the start never change, and there is exactly one solution.
2. Place a number
Tap a cell, then the number. Notes let you pencil in the candidates for a cell.
3. Check the three lines
A number is right when it breaks none of the three rules: its row, its column and its three by three box.