SudokuX is a sophisticated sudoku grid generator. Grids could be
generated automatically with different levels of complexity or created
manually to suit your needs. They could be solved on screen or printed
on paper. Complete preferences controls make it highly customizable.
No documentation. French language only. Freeware.
More detailed description on the following article [in French]:
<
http://www.cuk.ch/articles/3310>
Compatibility
Architecture: PPC x86 (Intel:Mac)
MacOSX only. Universal binary application. No official information
about compatibility but from 10.3 to 10.10 is a good guess. Running
fine on Panther and Tiger. Tested personally without issue on Snow
Leopard. Seems to be not compatible with El Capitan.