None.
Norm
not that we have to worry about that.
I had done the vast majority of the work already and TassadarZeratul offered to finish the final stretch, so I took him up on it. However, if TassadarZeratul suddenly quit mapping today, I would definitely finish the map since it's so incredibly close to being finished and it has SO much potential.
Zoan -- of course it isn't full understanding. You could ask "is the mechanism by which this counterexample blows up the ONLY mechanism possible for an initial configuration to blow up?"
Zoan -- Heinermann
Heinermann -- it also didn't solve that problem but hey as long as the investors are pleased
NudeRaider -- I have no idea tbh. All I know no human was ever able to solve it, but there's at least a few that beat portal 
NudeRaider -- Zoan