Time: 00:00:00

Sudoku 20x20 num: 300 (Level: hard)

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