Abstract: A game played on a game board having an operative configuration of normal squares and special squares, includes a frame and a see-through grid disposed in the frame for releasably receiving game pieces placed thereon and restraining the game pieces against unintended horizontal or vertical displacement. At least one upper planar slide is disposed in a plane below the grid and has normal squares, special squares and see-through squares. At least one lower planar slide is oriented transverse to the upper slide and disposed in a plane below the upper slide, the lower slide having normal squares and special squares (adapted to be viewed through the see-through squares of the upper slide). Optionally, the lower slide also has see-through squares to enable viewing of portions of a conventional game board therebelow (itself having normal and special squares) which can be viewed through the see-through squares of the upper and lower slides when such see-through squares are aligned.

Abstract: A color recognition system is used to distinguish between objects of various colors. A plurality of light sources are arranged at a sensing station to reflect light from the object as it passes the sensing station to a plurality of cooperatively mounted light detectors. The signals produced by the plurality of detectors are compared with a reference voltage and the comparison utilized to differentiate between objects of different colors passing the sensing station. In a particular embodiment of the invention, the color recognition system is incorporated in a ball separator for a pool table to separate the entirely white cue ball from the partially or wholly differently colored object balls and to divert the cue ball into a first storage station and the object balls into a separate storage station.

Abstract: A color recognition system is used to distinguish between objects of various colors. A plurality of light sources are arranged at a sensing station to reflect light from the object as it passes the sensing station to a plurality of cooperatively mounted light detectors. The signals produced by the plurality of detectors are compared with a reference voltage and the comparison utilized to differentiate between objects of different colors passing the sensing station. In a particular embodiment of the invention, the color recognition system is incorporated in a ball separator for a pool table to separate the entirely white cue ball from the partially or wholly differently colored object balls and to divert the cue ball into a first storage station and the object balls into a separate storage station.