Red Chariot on file 2 and Red Cannon on files 1 and 8 create a double cannon attack formation. Black Horse is on file 8. Red Cannon on file 1 blocks Black Chariot on file 7, while Red Chariot on file 2 attacks the block at file 3. Black Chariot on file 7 is trapped, and Black Horse on file 8 cannot intervene in time. Lesson in double cannon tactics and rapid counterattack.