When the Red Cannon on file 3 attacks the empty space next to the Black Chariot, the Black Advisor on file 6, rank 10 is pinned between the Black Chariot and the Black General. The Red Chariot on file 3 can strike through this vulnerability like a knight leaping into a garden. Imagine this position as a soccer match: The Cannon is the forward, the Chariot is the defender, and the Advisor is the goalkeeper... but all are 'penalized'!