Never let it be said that we’re not up to date at Richmond & Twickenham Chess Club.
Today’s puzzle is taken from a game played yesterday in the German Bundesliga.
RJCC alumnus GM Luke McShane was playing white against teenage French GM Marc’Andria Maurizzi.

It’s Black to play in this position.
Choose between:
a) Be7 and
b) Bf8.
You’ll need to provide the right reason for your choice to score full marks.