Weekly Extreme Sudoku Competition for May 19 to May 25
Number 661, Extreme
by Crosswords Ltd.
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192 people completed this puzzle correctly
1
2
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6
7
8
9
A
B
C
D
E
F
G
H
J
7
9
4
6
1
5
2
3
8
8
6
2
3
9
4
7
5
1
1
3
5
7
2
8
4
9
6
5
4
3
8
7
9
1
6
2
2
1
8
5
4
6
9
7
3
6
7
9
1
3
2
5
8
4
4
8
7
2
5
3
6
1
9
3
2
1
9
6
7
8
4
5
9
5
6
4
8
1
3
2
7