Challenge: Checkmate Strategy: Red Rook on 6th Rank - Optimal Defensive Tactics for the Defender - Can you solve it?

A classic chess position from the Quat Trung Bi category, where the Red Rook on the 6th rank exerts strong pressure. Black must defend patiently, waiting for counterattack opportunities from the Cannon and Bishop. This strategy showcases the finesse of a defensive player in neutralizing their opponent's threats.