I can confirm il vaticano is real. Was playing with a friend and got a checkmate through it. Basically my friend purposefully made a pawn en passant-able (which I took because en passant is forced, and I didn't want to brick my pipi) and they foolishly left their queen and king on the middle of the board, then I swapped my bishops' positions and won through il vaticano.
Don't believe me? Google deception.
il vaticano