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