U made this variant?
Capture The Flag Chess
I used to play this way when i was very young(along with my sister). I borrowed this idea from "capture the flag" game mode in shooting games. Basically, instead of a king there's a "flag"(not movable ofcourse) and the goal of the game is to take that flag(touch it with a piece basically) and bring it back to your own flag at it's starting position. If the opponent's piece captures the piece holding the "flag" then the flag is immediately returned to it's starting position.
you see
I did a neat thing called making this variant
so