Time: 00:00:00

Sudoku 20x20 num: 243 (Level: hard)

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