Time: 00:00:00

Sudoku 25x25 num: 530 (Level: hard)

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