Challenge: The 'Black Rook on File 2' Trap - The Hidden Predator in the Xiangqi Opening - Can you solve it?

The Black Rook on File 2 at Rank 10, the most aggressive piece in this formation, is setting a trap for the Red General. A detailed analysis of how the Black Rook exploits the Double Horse Formation to force the Red Horse to jump into the trap, creating a 'Red Horse on File 4' scenario.