Black Chariot on File 5 Rank 10 is pinned, Red Pawn on File 6 Rank 9 threatens the Black General. Red must quickly counterattack with the Chariot on File 3 Rank 1 and Cannon on File 2 Rank 3 to create the 'Chariot Retreat - Empty Cannon' formation, forcing the Black Chariot to retreat or be captured.