G403       Limited AUTO opponent interaction. In AUTO, a ROBOT whose BUMPERS are completely across the BARGE ZONE (i.e. to the opposite side of the BARGE ZONE from its ROBOT STARTING LINE) may not contact an opponent ROBOT (either directly or transitively through a SCORING ELEMENT CONTROLLED by either ROBOT and regardless of who initiates contact).

G428       CAGE protection. A ROBOT may not contact, directly or transitively through a SCORING ELEMENT, an opponent ROBOT in contact with an opponent CAGE during the last 20 seconds regardless of who initiates contact.

G421       1 defender at a time. No more than 1 ROBOT may be on the opponent’s side of the FIELD (i.e. containing the opponent REEF) with its BUMPERS fully outside and beyond the BARGE ZONES.

G426       *Don’t collude with your partners to shut down major parts of game play. 2 or more ROBOTS that appear to a REFEREE to be working together may not isolate or close off any major element of MATCH play.