Challenge: The 'Black Chariot on File 7, Rank 3' Trap - The Secret of the Red Cannon on File 9, Rank 6 - Can you solve it?

When the Black Chariot on File 7, Rank 3 charges in, the Red Cannon on File 9, Rank 6 flashes like a 'cannonball' through the Black ranks. But there's a deadly strategy waiting for the Black General!