Abstract: An electronic game is provided for replacing and substituting for from one to four human players in the car game of bridge. The game receives the value and suit of cards for each hand or position it plays for receives bids from human players and calculates and responds with a responding bid for each hand that it plays on behalf of. It also receives values and suits of cards played by other players in each trick and responds with a responding card value and suit for each hand it plays on behalf of.

Abstract: Apparatus for separating snakeskins and fines from pellets in a collection of polymeric material wherein a first nozzle impinges the collection of polymeric material in a stream of air on a moving screen having a mesh size such that the screen will allow the air and fines to pass but will retain the pellets and snakeskins, the air stream carrying the fines through the screen into a closed compartment. A second nozzle is positioned to allow air from the closed compartment to move upwardly through the screen at a different location from the first nozzle to lift and remove snakeskins from the screen.

Abstract: An electronic board game system for a game normally played by two players, such as chess, in which the game system makes respective moves to moves by a player, displays the moves and in which the position and identity of each piece can be displayed, as well as other indicators.

Abstract: A fine tuning indicator for a television receiver uses a synchronous detector for generating a control voltage indicative of the tuning accuracy. The control voltage is sensed by an indicating circuit which produces a visual indication of the tuned or mistuned condition of the receiver.