Time: 00:00:00

Sudoku 20x20 num: 211 (Level: hard)

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