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Archive · Sunday, December 21, 2025
Hard Sudoku · Sunday, December 21, 2025
An archived daily puzzle. Same rules, same single solution.
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people solved this puzzle
Hard
· one puzzle for everyone · fresh at 00:00 UTC
Hard
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3
6
2
3
9
5
1
9
4
5
3
4
7
9
2
4
8
9
2
7
8
2
9
4
1
6
8
5
2
7
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