When the Black General is on file 4, rank 10 and the Black Bishop is on file 7, rank 10 exposed, the Red Cannon on file 3, rank 1 must open fire immediately. The Red Chariot on file 1, rank 6 will lead the counterattack from the Black Pawn on file 6, rank 3, while the Red Chariot on file 1, rank 4 prepares to thrust into the opponent's chariot.