Explore the 'Black King on File 4-9, Red Cannon on File 2-9' formation with Black's strong defensive tactics. Learn how to counter the 'Knight Leaping Pawn' tactic and initiate a counterattack with the 'Chariot on File 4', while applying the military strategy 'Sacrifice a Finger to Save an Arm'. This is a detailed analysis of positional play in a dominant position, suitable for players who enjoy playing Xiangqi online like PikaFish or VNguyen.