Quidditch (sport) x 77m around the pitch). Balls are not allowed to be kicked off the pitch under penalty, nor is play allowed in the spectator zones. Players are asked to return to the pitch when play continues out of bounds. On the edge of the pitch is a penalty box where players who have committed fouls that warrant yellow cards are sent for one minute. Each official game requires having several referees present as well as an official snitch. The referees are the head ref whose job is to control the field and administer fouls and yellow or red cards to
Black Box (game) such as mirrors which reflect only a direct-hit ray, or prisms which split one ray into two. The GNOME game GFingerPoken and one section of the Macintosh game "System's Twilight" fall into this class. Black Box (game) Black Box is an abstract board game for one or two players, which simulates shooting rays into a black box to deduce the locations of "atoms" hidden inside. It was created by Eric Solomon. The board game was published by Waddingtons from the mid-1970s and by Parker Brothers in the late 1970s. The game can also be played with pen and paper, and