Challenge: Red Cannon 'Empty' Leg: How Black Defends in an Offensive Formation - Can you solve it?

When the Red Cannon is exposed on the 5th rank of the 9th file, the Black Advisors are positioned on the 4th and 6th ranks of the 10th file, forming a 'Double Advisor' formation. The Black General is securely protected on the 5th rank of the 10th file. Although the Black Cannon on the 5th rank of the 5th file is under siege, with a precise move by the Red Cannon, the situation can be completely reversed.