Sudoku 16x16 num: 457 (Level: hard)
8
3
2
5
4
G
F
3
5
B
C
1
6
F
D
A
E
8
3
2
5
G
4
3
2
5
8
8
E
C
4
6
G
7
5
8
C
9
D
8
E
B
G
7
9
A
C
1
8
5
B
D
G
6
B
3
E
7
6
4
9
A
7
6
E
3
7
D
3
1
8
1
C
2
7
2
3
E
F
7
G
D
F
1
C
8
E
B
7
G
B
5
3
C
8
E
E8C1325BD9A4G67F
325BE8C1G67FD9A4
D9A4G67FE8C1325B
G67FD9A4325BE8C1
8E1C23B59D4A6GF7
23B58E1C6GF79D4A
9D4A6GF78E1C23B5
6GF79D4A23B58E1C
C1E85B32A4D97FG6
5B32C1E87FG6A4D9
A4D97FG6C1E85B32
7FG6A4D95B32C1E8
1C8EB5234A9DF76G
B5231C8EF76G4A9D
4A9DF76G1C8EB523
F76G4A9DB5231C8E
Sudoku 16x16
Sudoku 16x16 is one of the largest and most fascinating variations of the classic puzzle, designed for those who enjoy thinking on a grand scale. The grid contains 16 rows and 16 columns, divided into smaller regions of 4x4 cells, each of which must respect the same placement rules as the rest of the board. The objective is to complete all the empty spaces with the numbers 1 through 16, making sure that no digit is repeated in any row, column, or region. Because of its size, this version requires extra concentration and a methodical approach, but its logical foundation remains the same as traditional Sudoku. Solving it feels like weaving together many small puzzles into one impressive challenge.
Every game begins with a selection of pre-filled numbers that guide your progress. Using these clues, you analyze interactions across rows, columns, and boxes, slowly narrowing down the possibilities until the solution emerges. Guessing is never necessary, since each puzzle has only one valid answer, reachable through careful reasoning. This 16x16 format is perfect for players who want to step up from 12x12 or 15x15 boards and explore the thrill of a truly large Sudoku. It's both entertaining and mentally stimulating, helping to sharpen logic, memory, and long-term focus. Tackling a 16x16 puzzle may look intimidating at first, but with patience and persistence, each solved section becomes a rewarding victory that brings you closer to completing the whole board.