Weekly Extreme Killer Sudoku Competition for May 10 to May 16

Number 712, Extreme
by Crosswords Ltd. October puzzle packs Now Out!. Thanks for supporting our site.
132 people completed this puzzle correctly

1 2 3 4 5 6 7 8 9
A
B
C
D
E
F
G
H
J
4
8
7
3
2
1
9
6
5
3
1
6
5
9
7
2
8
4
5
2
9
6
4
8
7
1
3
7
4
5
1
3
9
8
2
6
2
3
1
7
8
6
5
4
9
9
6
8
2
5
4
3
7
1
6
9
4
8
7
5
1
3
2
8
5
3
4
1
2
6
9
7
1
7
2
9
6
3
4
5
8

You have selected colour for printing.
You may have to go into internet options and tick the box to allow print backgrounds to allow printing in colour