When the Red Horse advances to 8th rank, 9th file, it's not just a normal move but a classic 'Mouse Catching Mouse' tactic. The Black Chariot at 1st rank, 4th file is isolated, while the Black Advisor at 5th rank, 9th file waits for a counterattack opportunity. Imagine if the Red General at 6th rank, 2nd file could immediately capture the Black Advisor - that's the power of this formation.