G416      Don’t choke up on the chain. A ROBOT may not reduce the working length of chain. Incidental actions such as minor twisting due to ROBOT imbalance or ROBOT-to-ROBOT interaction are not considered violations of this rule.

G415      Watch your ARENA interaction. With the exception of GAME PIECES, addressed by G410, a ROBOT may not damage an ARENA element. A ROBOT is prohibited from the following interactions with an ARENA element, except chain (see G416) and a GAME PIECE (see Section 7.4.2 GAME PIECES).

R105      ROBOT extension limit. ROBOTS may not extend more than 12 in. (~30 cm) beyond their FRAME PERIMETER.

G418      *This isn’t combat robotics. A ROBOT may not damage or functionally impair an opponent ROBOT in either of the following ways: