Picture of a 16x16 Sudoku
This is a slightly scaled down screenshot of a 16x16 Sudoku. The application
has marked a '3' in the second square that was placed against rules, because
that square (and also the column) already contained a '3'. The board graphic
was downloaded from the MaaTec
Sudoku Boards page. To reduce the download size, it is
not contained in the main setup file.