Live puzzle
Sudoku
Fill every row, column, and 3×3 box with digits 1–9 — no repeats. Use notes for candidates or ask for a hint when stuck.
4
2
1
7
8
5
3
7
9
2
7
2
4
4
7
5
8
9
1
7
2
9
6
5
4
7
8
9
2
3
6
8
3
7
1
5
Select a cell, then tap a number or use your keyboard. Toggle Notes to pencil in candidates.