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