The 144 tiles are arranged in a four-layer pattern with their faces upwards. Play An untouched turtle formation, with exposed 'free' tiles highlighted in blue Its name comes from the four-player game mahjong, but it is played entirely differently.

It is more commonly played on a computer than as a physical tabletop game. Mahjong solitaire (also known as Shanghai solitaire, electronic or computerized mahjong, solitaire mahjong or simply mahjong) is a single-player matching game that uses a set of mahjong tiles rather than cards. A Mahjong solitaire video game with the tiles arranged in 'turtle formation'

For other uses, see Mahjong (disambiguation). For the Chinese tile-based game, see Mahjong. This article is about the card-matching solitaire game.