Note that in the replay windows below you can click on the notation to
follow the game.
The endgame two knights vs pawn probably does not belong to the standard mating
procedures you need to master. But I found the following example so instructive
that I could not resist the temptation to analyse it. Black's pawn has crossed
the Troitzky-Line a4-b6-c5-d4-e4-f5-g6-h4, so that drawing and losing zones
for the defending king exist. In this case it is imprisoned near the dangerous
h8 corner so that White can win: