It is probably appropriate to add that the switch can be operated not only from 'below' but also from the side.
Seeing as it can also be operated from ‘above’ too, if not already occupied (i.e. from my understanding, B a4–c2; R a6–4 is legal), I would agree that'd make sense.
N a4-c3 ---> N a4-c2
N f5-c4 ---> N f5-d4
?? Are those corrections? Aren't those diagonal moves, the way you've assigned file labels? of two and one steps respectively?
Seeing as it can also be operated from ‘above’ too, if not already occupied (i.e. from my understanding,
B a4–c2; R a6–4is legal), I would agree that'd make sense.?? Are those corrections? Aren't those diagonal moves, the way you've assigned file labels? of two and one steps respectively?