This one might be tricky. You are required to finish a match without ever having any other pawns moved back to their starts. That means you won't be able to use Sorry!-cards, the bonus cards "Wipeout" and "Sideswipe" or yellow slides.
This may become really annoying, especially if you end up having only Sorry!-cards available. Small hint: If you have a steal card available on any other player besides you, use it to steal the Sorry! card of your main account on purpose. You will need to remember the correct position of the card as the enemy cards are covered while in steal mode.