About the game
A Sudoku board here is 81 cells: nine rows, nine columns, and nine boxes of 3x3 inside them. A few cells already hold digits from 1 to 9. Your job is to fill the rest so no digit repeats in any row, any column, or any 3x3 box.
Choose a difficulty level first, then work one cell at a time. The grid punishes guesses, so a number you drop in the wrong spot can sit there quietly and trip you later. Mistakes are part of it, and the puzzle stays calm while you think.
How to play
- Tap the cell you want, then tap a digit from 1 to 9 to put it there.
- Press Notes to pencil in candidate numbers in a cell without locking one in.
- Check every row, column and 3x3 box: each digit from 1 to 9 appears once and only once.
- Pick your difficulty level before you start, and keep an eye out for mistakes as you fill.
