The Weekly Extreme 'Unsolveable' Jigsaw Sudoku
#100, January 16 - January 22 2026
by Andrew Stuart
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
G
H
J
7
5
8
3
4
2
6
6
3
4
3
2
9
5
2
7
9