Corner mate
A rook-and-knight mate against a king stuck in the corner.
How it works (spoiler)
The rook cuts off the file next to the corner and the knight hops in to give a check nothing can capture or answer.
A rook-and-knight mate against a king stuck in the corner.
The rook cuts off the file next to the corner and the knight hops in to give a check nothing can capture or answer.