I wrote about my Sudoku solver to an acquaintance of mine. He responded, “umm, I don’t understand perl!!!”
For fun, here is a Visual Basic .NET version of the Sudoku solver. It’s probably not idiomatic as it is a straight port of the Perl version. On the flip side, it does allow me to distribute a binary version of the Sudoku solver. (.NET runtime required.) It’s not a great user interface, but it seems to work in a good enough manner for now.