That's the chess game, just ordinary chess. Not 4-d, that's a red herring. Nor is he tossing the 2A. That's another red herring, although he believes it's ok for him to chip away at it.
All this is necessary only because the schools are treated as being different than the rest of publicly accessible localities. All that has to be done is to stop banning personal defense tools from public places. Through market pressures, the problem will take care of itself, including in schools, hospitals, and football games. If a places are to be restricted, let it be the local bars and houses of ill repute, where emotions run high in more than one sense. /sarc