Sudoku 16x16 num: 402 (Level: hard)
C
1
2
8
D
4
D
1
B
4
G
G
A
B
3
F
C
5
8
D
3
9
G
E
8
C
5
6
G
3
8
D
6
1
7
9
G
9
B
C
F
D
3
7
4
2
D
C
C
D
3
1
F
C
B
3
E
E
9
7
3
5
6
D
2
4
7
3
G
D
2
8
1
C
C
F
D
2
E
9
3
2
7
E
A
E
4
B
5
F
2
4
E
A
5
C
FC15286D9GAEB347
286DFC15B3479GAE
9GAEB347FC15286D
B3479GAE286DFC15
CF5182D6G9EA3B74
82D6CF513B74G9EA
G9EA3B74CF5182D6
3B74G9EA82D6CF51
15FC6D28AE9G47B3
6D2815FC47B3AE9G
AE9G47B315FC6D28
47B3AE9G6D2815FC
51CFD682EAG9743B
D68251CF743BEAG9
EAG9743B51CFD682
743BEAG9D68251CF
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.