Time: 00:00:00

Sudoku 25x25 num: 508 (Level: hard)

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