Q: What are the guidelines for a non-routing unit that encounters the board edge? ex: a chariot that is in a corner and doesn't have the room to do a Pull-About.

A: There is no answer in the rulebook for this, so there's no real rule to clarify. However, the position of Osiris is that the world doesn't end at the board edge. In a game of feet, give your opponent the inches. Let them have an extra couple inches of space "off-board" to get back on the board. This is not license for chariots to go racing 6" or more off the table edge. Use your judgment.