Time: 00:00:00

Sudoku 25x25 num: 591 (Level: hard)

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