hello,
just bought a great book called "award-winning chess problems" by burt hochberg. after getting stumped on the very first problem I looked at the solution in the back but think the solution may be to another problem. The black moves don't seem to match the given pieces. I might be misreading the shorthand.

I don't know how this works but I tried to put the puzzle in the above FEN diagram. if that doesn't work the problem is called:"V. Diaconu, Der Waarheid 1967" There's supposed to be exactly one key to white mating in two moves. Anyone know the solution?
Thanks