Point control

King of the Hill (also known as King of the Mountain or King of the Castle) is a children's game, the object of which is to stay on top of a large hill or pile (or any other designated area) as the "King of the Hill". Other players attempt to knock the current King off the pile and take their place, thus becoming the new King of the Hill.

The way the "king" can be removed from the hill depends largely on the rules determined by the players before the game starts. Ordinarily pushing is the most common way of removing the king from the hill, but there are significantly rougher variations where punching or kicking is allowed. As such, the game is often banned from schools.

King of the Hill is also a method of play in airsoft and the "woodsball" variant of paintball.

The name of the game has become a common metaphor for any sort of competitive zero-sum game or social activity in which a single winner is chosen from among multiple competitors, and a hierarchy is devised by the heights the competitors achieve on the hill (what Howard Bloom called "the pecking order" in his The Lucifer Principle), and where winning can only be achieved at the cost of displacing the previous winner. The game is the likely inspiration for the name of King of the Hill, an American animated series.

In tennis, a variation of this concept manifests in the recreational game alternately titled King of the Court. In this game, one player is designated as the "king/queen" and occupies one side of the court. The other players line up single file on the other side. One challenger steps up and plays out a single point against the “king.” The point can be started with either a serve or a drop hit. If the challenger wins, they replace the “king” on the other side of the court and become the new king. Variations of this game include the challenger having to win two or three points in a row. This game practices playing a singles point.

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Wikipedia