#19. LOL, quite right that Qh2# is incorrect!
What about 1. Qb2 f1=P? I could not see a mate then.
What is P?
P stands for Paard, Knight. Sorry about that.
In your first diagram: 1. Qh3.
Qh3 correct (2nd diagram post 17).
Wow, Qb2 is good indeed. :-)
Post 16, not so hard IMO.
Puzzle 1: Qc7
These I found much more difficult:
Nope, if Qc7, then g5+
Lol, I also missed it. In that case Bb6.