For those who can't see the image: SO there is an outer delta with two 1 ohms and a 2 ohm. Then an inner Y with three 2 ohms. Within the Y, there is a delta formed on it's two lower legs with three 1 ohms. The question is to find the resistance between the upper arm above the inner delta.
Now, my question is, which branches should I convert and also, what would it look like if I convert those branches?