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title: G41
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During each CROSSING, a ROBOT may not cause more than one (1) BOULDER to move from the NEUTRAL ZONE into the opponent’s COURTYARD.

_Violation: TECH FOUL per additional BOULDER_

>For example, if a Red ROBOT is CROSSING the Blue OUTER WORKS and a Blue ROBOT causes a BOULDER to bounce off of the Red ROBOT and through the OUTER WORKS, there is no violation of this rule as the action was caused by the Blue ROBOT.