Reach a square that lets your king secure promotion.
In a single-pawn ending, key squares are squares from which the attacking king can secure promotion against correct defense. Their location changes with the pawn’s rank and file. Rook pawns need special care because the defending king may draw from the corner.
Bring your king toward the enemy king
Your king moves closer to the other king. Your king and pieces need to work together to limit its escape squares.
2 more clean runs (at any point) to reach Recall.