Hi all. This came up in a game. The situation is this: my turn I charged opponents unit. It didn’t rout or waver so the 2 units remained engaged. In his turn he disengaged his unit 1 inch and charged my unit ( the same one he was engaged with) but slid it across to make room for another of his units to charge my unit as well. Is this a legal move or does his unit have to stay engaged and counter charge?