Hello.
"The move A doesn't save Black either because of B." means A will not save Black"?
We cannot say that 'doesn't save' means 'will not save'.
What we can say is that your first sentence may have future reference. It may also have reference to general time - every time that move is made. Only context will tell us which is intended.
Context is always important; labelling is rarely important.
Any answer please?
What is the question that hasn't been answered?
Context is always important; labelling is rarely important.