Outside passed pawn
Sometimes passed pawns are already bad enough but outside passed pawns are really lethal. They are passed pawns that are far away from teh action.They are often put to good use by decoying the opponent's king or pieces. Then while his king is away, your king mops up his other pawns and promote one of your own. Here is the tactic in action:
Even if you lose it like I did you can still win your opponent's pawns and get another passed pawn. I hope you liked it and please feel free to comment!