This is an easily assembled circuit that simulates the priority deciding panels in TV game shows. The player who presses his or her switch first, has the right to answer, whilst locking the other two players out. The winning player is identified by the LED associated with that player's switch. The other player's LEDs remain OFF. The switches and LEDs may be wired into remote podiums to provide the same functions.The FK137 is suitable for 2-3 players.