Sudoku
Easy
Medium
Hard
Expert
Daily Challenge
New Game
Hint
Undo
Redo
00:00
Pause
3
4
7
4
7
8
9
1
2
3
9
1
3
4
6
4
6
9
7
3
7
1
4
7
2
5
6
4
9
7
6
4
2
9
7
8
5
9
7
8
1
6
4
1
2
3
4
5
6
7
8
9
✕
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New Game