Time: 00:00:00

Sudoku 18x18 num: 450 (Level: hard)

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