[1] Gay Gordons is also known under its alternative name Exit, and was invented by David Parlett.
A layout of ten piles of five cards each is dealt face up, with two reserve cards also face up.
The aim of the game is to remove all cards by making pairs that add up to eleven (suits are not important).
The game is popularly implemented as described with 10 tableau piles of five cards each, and Parlett's own instructions refer to "ten columns".
However the image on Parlett's site depicts only five tableau piles of ten cards each, which is an alternative and much more difficult way to play.