To move or not to move? That is the question.

rc8#

there is no way it can be done in one move

It is ok. But who is to move?

what about the knight on a7

ya who has to move 

mate in 2

checkmate in 2 for white which goes like this 1.Rc8 Kxa7 Rxa8

most likely white

I know the answer-To move

Here is the answer

Rc8#

mate in 2

I made the same mistake, but that sets up Kxa7

But it is black to move that is why it is mate in one I talked @Hosf and he explained me everything.His intention is to make people find who should move based on the board and then find the answer.That is why it is mate in one.

Don't move.

Then it's mate in one

It is black to move