Time: 00:00:00

Sudoku 25x25 num: 492 (Level: hard)

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