[Retros] Cornice Chess fun

[Éric Angelini]

Hello Retros’ friends,
more puzzles from lockdowned Brussels.
« Cornice Chess » (CC) allows only movements 
that end on ranks 1 and 8 or columns a and h
(the opening 1. Nc3 is forbidden but not the
Sodium Attack 1. Na3)

What is the length of the shortest CC game ending in:
1) 0-0
2) NxB
3) BxN
4) BxB
Best,
É.