[EricH]

Originally Posted by TimTheGreat

Why would you have to do it twice? The defense is fully weakened once both robots go through

Nope. Where did Robot A start? In the Courtyard. Where do you have to be to start a Crossing? In the Neutral Zone, NOT in contact with a Defense. How do you Damage a Defense? Two Crossings.

This particular Crossing method will only net you one Crossing, thus one "hit" to the Defense.