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