(Game Definitions Page 6)
“Trapping – A Robot is considered to be trapped if an opposing Robot has restricted it into a small, confined area of the field, approximately the size of one foam field tile or less, and has not provided an avenue for escape.”
Just for official clarification, if a “wallbot” restricts the opposing robots into a space (such as three/four field tiles), but does not provided an avenue for escape is this legal. I would assume this is legal, but i’m not sure.