Challenge: Black's Checkmate by the Empty Cannon: Optimal Speed Strategy - Can you solve it?

A classic formation with the Red Cannon exposed on file 6, rank 7, and the Red Chariot exposed on file 7, rank 5. The Red side employs the empty cannon tactic to force a quick checkmate in three moves, creating a 'double horse leg' formation to compel Black to surrender. Detailed analysis of each move from the perspective of the attacking side.