Time: 00:00:00

Sudoku 18x18 num: 600 (Level: hard)

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