The Weekly Extreme 'Unsolveable' Sudoku Puzzle
#676, December 13 - December 19 2025
www.sudokuwiki.org/Weekly-Sudoku.aspx
1
2
3
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5
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7
8
9
A
B
C
D
E
F
G
H
J
8
1
6
5
7
4
2
1
9
1
8
7
5
1
6
6
5
4
7
3
2
9
3
2
8