it is mate (I am pretty sure cause it is) cause it is a double check with the knight and rook so the black king can't go anywhere
Vote Chess Analysis Bug.

I don't play a lot of VC but I'm assuming the only time that works is if you vote for a mating move, correct?
I have made a forum like this before (Here)
But now I have a screenshot of the bug.
And no, JRR Tolkien Chess Tema did NOT cheat despite the 100%.
The game is still ongoing, but since I voted Nxc7#, it THINKS that the game is over.