Time: 00:00:00

Sudoku 20x20 num: 225 (Level: hard)

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