Golf.

It is one of the few ball games that does not require a standardized playing area. Instead, the game is played on a golf course, generally consisting of an arranged progression of either 9 or 18 "holes."

The underlying principle of the rules is fairness. As stated on the back cover of the official rule book:

Play the ball as it lies, play the course as you find it, and if you cannot do either, do what is fair.

Currently, the game set 9 holes.

Try to go all of them!