Daily Sudoku Competition for May 10
Tough
by Andrew Stuart
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
G
H
J
6
3
8
9
2
1
4
5
7
5
9
1
3
4
7
8
2
6
4
2
7
8
5
6
9
1
3
2
6
9
4
3
5
1
7
8
7
4
3
1
8
2
6
9
5
8
1
5
6
7
9
3
4
2
3
5
6
2
9
4
7
8
1
1
7
4
5
6
8
2
3
9
9
8
2
7
1
3
5
6
4