Rules

The team may have a maximum of four to five players, of which there are three players on the field at a time.
The teams don't have to have coaches
Game time: Game time: 10 minutes of running playtime excluding the the last one minute which is effective playing time OR a maximum of 21 points (overtime occurs if needed, with the first team to score 2 points winning)
Shot clock: 12 seconds, starting as soon as the team gains possession of the ball.
Points: two points for three pointers, 1 point for other baskets and free throws.
Fouls: Only team fouls are counted. A foul during a shooting attempt results in 1 free throw (2 free throws for a shot beyond the three-point line). After 7-9 team fouls, the opposing team gets 2 free throws, and from the 10th foul onward, they get 2 free throws plus possession of the ball.

Gameplay:

Ball control after the basket: the team receiving the offensive turn is allowed to take the ball, after which they must circle the ball 3d outside the arc. The defending team is allowed to defend for the duration of the round, but not in the no-charge area.
Ball control after a defensive rebound or possession: the ball must be carried or passed outside the 3p arc (no need to go around after an offensive rebound)
Ball control after a dead ball (fouls and boundary crossings): check-ball behind the arc opposite the basket
Ball control after contested ball: the defending team receives the ball (check-ball)