Challenge: Xiangqi: Defensive Tactics with Pawns and Cannons in the 'Horse's Ambush' Formation - Can you solve it?

When the Red Horse on file 5, rank 2 launches a distant 'ambush' attack, the Black Pawn on file 4, rank 3 faces the threat of being captured. The Black Cannon on file 7, rank 1 is the only defensive weapon. Discover how to neutralize this attack and seize counterattacking opportunities in this formation.