Briefing lounge

A briefing lounge was an area of Federation starships where officers could relax while off duty.

In 2265, James T. Kirk and Spock played a game of three-dimensional chess in the briefing lounge of the USS Enterprise (NCC-1701) when Kirk was interrupted by a call from Lieutenant Lee Kelso on the ship's bridge that influenced the pair of chess-players to head to the vessel's transporter room.