Challenge: 'Black Cannon 2 is Setting a Trap for 'Red Horse's Colored Leg' - When Red General is About to 'Strike Straight at the Heart' - Can you solve it?

Look at this chess position as a battle between two generals of the Lý Dynasty: "On the Red side is *General Lý Thường Kiệt*, raising high the flag of 'Horse's Leg' to pierce through *General Trần Quốc Tuấn*'s ranks on the Black side. But in the corner, *Black Cannon 2* is secretly waiting, ready to 'sound the alarm' when Red Horse dares to 'step into the snake's den'. You will see why just one wrong move by Red will cause the entire formation to collapse like *Thăng Long's Wall before God Cannon*.