Centralized King:

An important king rule in endgames is that, your king becomes a fighting piece! In other words, get your king to action where it's a king & pawn battle. Ultimately, your king may help you to tackle weak pawns, and also provided the needed support for one of your own pawns to eventually reach the 1st/8th Rank. Take a look at the position below to see how white activates his king to attack the enemy pawns.