[Retros] Cornice Chess fun

Éric Angelini eric.angelini at skynet.be
Thu Oct 29 08:53:28 EDT 2020

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

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