[eugenebrooks]

There is no rule that says that a defending robot must clear
a path for an offensive robot to use in crossing a barrier.
It is a precarious crossing, crossing on top of another robot
would be done at your own risk.

A defending robot that "hits" a robot that is crossing,
causing it to be up-ended, will be something that is left
to the referees. In Aim High, the precarious spot was
the high value scoring position, and it was a real war
there for good reasons. I don't think that you have
that justification with the barrier crossings in this game.

Eugene