Time: 00:00:00

Sudoku 25x25 num: 473 (Level: hard)

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