Quidditch (sport) AR's (Assistant Referees) to determine which card should be given to the offending player. When a blue card is issued, it is considered to be a non-stacking yellow card, and can either result in being sent back to hoops or spend one minute in the penalty box. When a yellow card is issued the player must sit in the penalty box for one minute. If the opposing team scores before the minute is up then the player will be allowed to return to the game. They are still considered off broom and must tag their teams hoops in order 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