Start the round
Look at the Sudoku game above. If you see a start, play, or new game button, press it first.
Time
00:00
Mistakes
0
Progress
56%
📖 How to play
How to play Sudoku
Fill the grid so every row, column, and small box has the numbers 1 to 9, with no repeats.
- 1
Tap an empty square
Pick any empty square in the grid. It lights up so you know it is chosen.
- 2
Choose a number
Tap a number from 1 to 9 on the pad. It goes into the square you picked.
- 3
Never the same number twice
The same number can't be in the same row, the same column, or the same small 3x3 box. A wrong one turns red.
- 4
Use Notes when you are not sure
Turn on Notes to write tiny maybe-numbers in a square, without choosing a final answer yet.
- 5
Stuck? Tap Hint
Hint fills in one correct number for you, so you can keep going.
How you win
Fill every square with the right number to win. No empty squares and no red mistakes.
Start with squares where only one number can possibly fit.
Turn on Notes to jot down your guesses first.