Challenge: Red Rook on File 9, Rank 10: Core Defense Tips for the Black General - Can you solve it?

When the Red Rook is on file 9, rank 10 facing the Black Rook on file 4, rank 10, the Black General must proactively defend using the Cannon on file 5, rank 6. The Red Rook can exploit the double horse formation to create pressure, but the Black General needs to know how to counter the attack and wait for a counterattack opportunity.