7
2
1
2
5
8
2
7
2
4
6
1
3
5
8
5
4
7
3
2
4
1
7
1
9
1
9
8
5
9
1
8
2
4
Sudoku has no math — you could replace the digits 1–9 with any 9 symbols and the puzzle works identically.
Sudoku has no math — you could replace the digits 1–9 with any 9 symbols and the puzzle works identically.
Sudoku has no math — you could replace the digits 1–9 with any 9 symbols and the puzzle works identically.
Sudoku has no math — you could replace the digits 1–9 with any 9 symbols and the puzzle works identically.