I worked on this for 2 hours and 15 minutes

Please stop solving or you will go mad. This is just for fun. I will post the complete solution later before I sleep. It's already 3:05 AM here in the Philippines!

You should be more specific, but it's not correct, there's a bishop on a3.

Yah. The position is perfect.

I said this is the most difficult 2-mover problem I've ever seen. The post says it's true!

Knight b6, bishop e7??

You should play a legal move.

You can see the full solution tomorrow. I will post it later. Goodnight to you Martino. Thanks for solving.

this position is illegal...

fiction969, show us the moves.

Page 4

                             White mates in 2

Very nice. You may now take a rest.

1. Nxf4+...Nxf4 (forced) 2. Ngxe7#

Yah, the author intentionally made this an illegal position.  This problem will put the solver's thinking ability to supreme test!! Engines cannot be of help. Cheaters are not welcome here.

2... Bxe7.

Very nice try but: 1. Nxf4+! Nxf4+!! also.

i got ...Rxf4  Nxf4, Nxf4#

NO. HE. DOESN'T.

In how many posts do I need to point out the bishop?

Thanks for solving. 1. Ngxe7+ Black has to take with the Bishop! ...Bxe7!!

Scottrf, I thought you're out.

Nice one. I have an assistant screening the posts.

Thanks a lot.

I wonder who can solve this very difficult puzzle.

you didn'd state any move black had to make in the question, just a sequence of two moves to mate

 which i found