----------------------------------------------------------------------|
----------------------------------------------------------------------|
--8-8-8--4-4-4-4-4----------------------------------------------------|
--8-8-8--4-4-4-4-4--4-4-4--6-6-6-6-6----------------------------------|
--6-6-6--2-2-2-2-2--4-4-4--6-6-6-6-6----------------------------------|
--------------------2-2-2--4-4-4-4-4----------------------------------|