Choose a hidden case to keep, then eliminate Cases 1 through 6!
Eliminate Cases 7 through 12, then check the Banker's Phone!
Review the Banker's terms before choosing your fate:
Take a secure cash settlement right now.
Risk it all. Flip a coin to double the banker's offer or get $0.
Instantly switch your chosen case with the last un-opened box.
(To ignore the Banker, close the main phone folder and finish opening your regular boxes!)