A number of years ago some women started a "granny basketball league" with those rules, 3 zoned court etc. I presume it's still going., tho maybe not. Even old time unis.No mention of Lynne Lorenzen from Ventura, arguably the greatest Iowa girl's high school bball player of all time. Scored 100 pts a time or two.
As an aside, when my grandma played in the early 1930s 6 v 6 was divided into 3 zones. 2 forwards in the zone by the basket, 2 players in the zone at midcourt, and 2 players on defense at the opposition's basket.