"Checkmate" is a television episode of the British science fiction-allegorical series, The Prisoner. It was first broadcast by ITV (ATV Midlands) on 24 November 1967. As the title suggests, the plot centers on a game of human chess, directed by a mysterious "man with a stick". The chess game has been described as a metaphor for life itself, albeit a somewhat transparent one. "Checkmate" received the highest viewership of any of the series' episodes on its first UK broadcast.
Man with the Stick: Some psychiatrists say it satisfies the desire for power. The only opportunity one gets here.
Number 6: That depends what side you're on.
Man with the Stick: I'm on my side.
Number 6: Aren't we all?
Man with the Stick: You must be new here. In time, most of us join the enemy – against ourselves.
The introductory paragraph uses material from the Wikipedia article "Checkmate (The Prisoner)" as of 21 Feb 2018, which is released under the Creative Commons Attribution-Share-Alike License 3.0.