Challenge: Black Rook and Red Cannon: Defensive Tactics in Classic Xiangqi Formation - Can you solve it?

Analyzing the position between Black Rook at 8th file, 8th rank and Red Cannon at 6th file, 8th rank, with Red Pawns at 6th-4th files, 9th rank forming a dangerous triangle. Black needs to exploit counterattack opportunities from Black Bishop at 9th file, 8th rank and Black Rook at 7th file, 3rd rank.