Sudoku 25x25 num: 543 (Level: hard)
K
C
L
J
4
P
G
A
6
N
9
L
J
4
H
2
B
3
P
G
I
E
5
N
1
C
H
O
3
I
8
A
E
N
C
9
L
J
3
I
A
E
M
9
D
J
2
A
E
N
K
M
9
L
4
2
P
G
I
8
M
C
9
L
4
H
F
O
3
G
I
A
E
6
7
J
H
O
3
G
E
N
M
9
F
O
B
G
8
A
N
7
D
J
4
P
G
I
8
E
5
N
1
M
C
L
D
2
F
E
5
7
K
1
D
H
F
B
A
1
M
J
H
F
O
3
P
G
E
K
D
F
O
3
G
8
E
N
7
1
M
C
9
F
O
B
3
P
A
E
5
N
7
K
1
H
E
5
6
N
K
1
9
D
4
H
F
O
B
3
P
5
6
N
7
1
C
9
J
4
O
B
3
P
I
E
M
C
9
L
D
J
4
F
A
E
1
J
B
8
A
E
N
7
K
L
O
3
P
G
8
A
E
5
6
N
7
M
C
L
H
F
A
E
5
N
M
9
J
4
H
2
O
3
P
K
M
D
J
F
O
3
I
8
A
5
D
H
2
O
B
P
I
8
E
6
K
F
B
3
P
A
E
6
1
M
9
L
D
B
G
I
5
6
N
9
L
D
J
H
A
6
N
7
1
M
C
4
H
2
P
G
I
7
C
9
L
D
H
F
O
B
3
A
E
7K1MC9LDJ4H2FOB3PGI8AE56N
9LDJ4H2FOB3PGI8AE56N7K1MC
H2FOB3PGI8AE56N7K1MC9LDJ4
3PGI8AE56N7K1MC9LDJ4H2FOB
AE56N7K1MC9LDJ4H2FOB3PGI8
K1MC9LDJ4H2FOB3PGI8AE56N7
LDJ4H2FOB3PGI8AE56N7K1MC9
2FOB3PGI8AE56N7K1MC9LDJ4H
PGI8AE56N7K1MC9LDJ4H2FOB3
E56N7K1MC9LDJ4H2FOB3PGI8A
1MC9LDJ4H2FOB3PGI8AE56N7K
DJ4H2FOB3PGI8AE56N7K1MC9L
FOB3PGI8AE56N7K1MC9LDJ4H2
GI8AE56N7K1MC9LDJ4H2FOB3P
56N7K1MC9LDJ4H2FOB3PGI8AE
MC9LDJ4H2FOB3PGI8AE56N7K1
J4H2FOB3PGI8AE56N7K1MC9LD
OB3PGI8AE56N7K1MC9LDJ4H2F
I8AE56N7K1MC9LDJ4H2FOB3PG
6N7K1MC9LDJ4H2FOB3PGI8AE5
C9LDJ4H2FOB3PGI8AE56N7K1M
4H2FOB3PGI8AE56N7K1MC9LDJ
B3PGI8AE56N7K1MC9LDJ4H2FO
8AE56N7K1MC9LDJ4H2FOB3PGI
N7K1MC9LDJ4H2FOB3PGI8AE56
Sudoku 25x25
Sudoku 25x25 is a colossal interpretation of the classic puzzle, played on an immense grid of 25 rows and 25 columns. The layout is divided into regions of 5x5 squares, and your task is to place the numbers 1 through 25 so that none are repeated in any row, column, or region. The sheer size of the puzzle transforms the experience, requiring players to manage a far greater range of possibilities while still applying the same logical principles as in smaller Sudokus. Each move feels like a step in building a vast, ordered structure, where progress comes from careful analysis and long-term planning.
At the start, a set of given numbers provides the foundation for your strategy. Using these anchors, you eliminate contradictions, trace logical paths, and gradually fill the board. Guessing is unnecessary, since every Sudoku 25x25 is designed to have only one valid solution that can be reached through reasoning alone. This format is particularly appealing to players who enjoy tackling monumental challenges and pushing the limits of logical deduction. It sharpens memory, boosts focus, and strengthens problem-solving skills while offering hours of immersive gameplay. Completing such a puzzle is not just solving-it's an achievement, a test of persistence and mental discipline that turns a daunting expanse of numbers into a perfectly structured masterpiece.
