Challenge: The 'Empty Cannon' Formation - The Red General's Strategy in the Battle of Bach Dang - Can you solve it?

Discover the 'Empty Cannon' formation with the Red Cannon on file 5 rank 1 and the Red Bishop on file 7 rank 5, creating a sudden attack opportunity as seen in the Battle of Bach Dang. Learn how to apply the 'Leaping Horse Across the River' strategy to defeat the Black Advisor on file 4 rank 10.