Job is still open. Haven't had a single application yet that has got my puzzle. Hence why I asked on here.
The problem with it is everyone is assuming it's a development style puzzle, when really I just want you to read the question, copy the code into VS or dotnetfiddle and get the answer for the code, then relate it back to the question. I do need to simplify it, seems a real shame that I do though. It shouldn't take anyone more than 5 minutes to complete this if they have basic understanding of how to use VS and google. I don't like the idea of having to explicitly tell people it isn't really a development puzzle but I guess I have to.