Challenge: Xiangqi: Strategy 'Blocked Chariot' - Defensive Tips for the Red Player - Can you solve it?

When the Black Chariot is on file 7 and blocks the Black Horse on file 6, rank 10, the Red player must immediately use 'Empty Cannon' on file 2 to rescue the Horse. This is one of the classic Xiangqi strategies, similar to the 'White River' formation where the opponent's pieces are trapped.