Weekly Extreme Killer Sudoku Competition for May 14 to May 20

Number 556, Extreme
by Crosswords Ltd. April puzzle packs Now Out!. Thanks for supporting our site.
163 people completed this puzzle correctly
1 2 3 4 5 6 7 8 9
A
B
C
D
E
F
G
H
J
3
1
8
5
9
7
2
6
4
4
7
5
2
1
6
8
9
3
9
6
2
3
8
4
1
7
5
1
8
9
7
3
2
5
4
6
7
5
4
8
6
9
3
2
1
2
3
6
1
4
5
7
8
9
5
9
7
6
2
1
4
3
8
8
4
1
9
7
3
6
5
2
6
2
3
4
5
8
9
1
7

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