"Torso"--as it relates to Charging

[Nevadaref]

Originally Posted by BillyMac

Let's examine this situation before the contact occurred.

To obtain an initial legal guarding position: The front of the guard’s torso must be facing the opponent.

Not "100% square" isn't the proper question. In proper rule terminology (a Point of Emphasis this year), was the front of the B1's torso facing A1?

Answer that and you'll have half of your interpretation.

Then move on to the contact for the final piece of the puzzle.

None of that matters in this case as B1 is standing in the lane according to the OP.
ILGP only matters for plays in which there is movement by the defender. It grants additional rights, but is not necessary for a player to have a legal spot on the court.

In this play, B1 has the right to any spot on the floor provided that she got there first and without illegally contacting an opponent to reach it. She could be facing the basket in this play. She still cannot be displaced from that spot by an opponent. That is the only judgment the official needs to make in this situation. So how much contact A1 caused is the only factor in deciding if a foul occurred.