Time: 00:00:00

Sudoku 20x20 num: 238 (Level: hard)

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