Time: 00:00:00

Sudoku 20x20 num: 289 (Level: hard)

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