Challenge: The 'Red Horse' Trap on File 5: A Bloody 'Bing' Move - Can you solve it?

When the Black General is on File 4 Rank 9 facing the Red Horse on File 5 Rank 5, every move by Red seems like a dagger to the heart. But there's an uncalculable 'Bing' move that forces the Black General to fidget on their seat.