Weekly Extreme Killer Sudoku Competition for Oct 15 to Oct 21

Number 578, Extreme
by Crosswords Ltd. December puzzle packs Now Out!. Thanks for supporting our site.
154 people completed this puzzle correctly
1 2 3 4 5 6 7 8 9
A
B
C
D
E
F
G
H
J
4
2
9
3
7
8
5
1
6
8
7
1
6
4
5
2
3
9
6
3
5
2
9
1
8
7
4
2
1
8
5
6
7
9
4
3
9
6
3
4
8
2
7
5
1
7
5
4
1
3
9
6
2
8
5
4
6
9
2
3
1
8
7
3
8
2
7
1
6
4
9
5
1
9
7
8
5
4
3
6
2

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