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.

G424       *Don’t tip or entangle. A ROBOT may not deliberately, attach to, tip, or entangle with an opponent ROBOT.

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.

G422       *Stay out of other ROBOTS. A ROBOT may not use a COMPONENT outside its ROBOT PERIMETER (except its BUMPERS) to initiate contact with an opponent ROBOT inside the vertical projection of the opponent’s ROBOT PERIMETER.