Weekly Extreme Killer Sudoku Competition for Jan 13 to Jan 19

Number 643, Extreme
by Crosswords Ltd. December puzzle packs Now Out!. Thanks for supporting our site.
150 people completed this puzzle correctly
1 2 3 4 5 6 7 8 9
A
B
C
D
E
F
G
H
J
1
6
9
5
7
4
8
2
3
5
3
8
2
9
6
7
1
4
2
7
4
8
3
1
5
9
6
4
9
5
7
6
2
1
3
8
8
1
6
3
4
5
2
7
9
7
2
3
9
1
8
4
6
5
6
5
1
4
2
9
3
8
7
3
4
2
6
8
7
9
5
1
9
8
7
1
5
3
6
4
2

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