This is a six-member bock. Your parent's & children's invites also help fill the circles along with your invites. Even if you don't work, this block will generate income.
How does the algorithm work?
This is a recycling binary system but not a never-ending pyramid scheme. Once the six circles get filled, the node will enter recycle mode which starts from zero again.
Group block has a recycling cost of 50% of node cost which will be deducted from your balance. This code will be forwarded to your last node instantly. This process helps to auto grows your network without any additional members.