Time: 00:00:00

Sudoku 25x25 num: 546 (Level: hard)

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