Nepedia
Back to Discover
Advanced Reader
🎨

Mahjong solitaire

arts Maturity 5-7 Next article →

Mahjong solitaire is a single-player matching game.

Gnome Mahjong
Gnome Mahjong

It uses a set of 144 tiles instead of traditional playing cards. While the game shares a name with the four-player tabletop game mahjong, the actual methods of gameplay are unrelated. Most people play this version on computers or mobile devices today. You can also play with physical tiles. This requires a special wooden frame to manage the lengthy setup process. The primary objective is to find and remove matching pairs of tiles from the board.

Mahjong solitaire-02
Mahjong solitaire-02

The mechanics of the game rely on identifying "free" or "open" tiles. A tile is considered open if it can be moved either to the left or to the right without disturbing any other tiles. Players must select two identical open tiles to remove them from the layout. This action is crucial because it exposes the tiles that were previously hidden underneath. As more tiles are removed, new pairs become available for play. The game ends in a win if every tile is cleared from the board. However, a player loses if the remaining tiles contain no more exposed pairs.

There are many different ways to organize the tiles into layouts. One of the most famous arrangements is known as the "turtle formation." In this setup, the 144 tiles are arranged in a four-layer pattern with their faces pointing upward. Other layouts might use different names, such as "the ox" or "the snake." Electronic versions of the game often allow players to choose different levels of difficulty. Some digital versions also allow for shuffling the tiles or changing the symbols. Instead of traditional tiles, players might match flowers, jewels, or other items.

Mahjong solitaire-02
Mahjong solitaire-02

The history of the computer game began with Brodie Lockard. He created the original version in 1981 for the PLATO system. He named his creation Mah-Jongg. This version was played using a CDC-721 touch screen terminal.

PLATO Mah-Jongg screen
PLATO Mah-Jongg screen

Later, the company Activision released a version called Shanghai in 1986. This release was available for many platforms, including the IBM Personal Computer and the Macintosh. The Macintosh version was developed by Lockard himself. The Apple IIGS version was a port created by Ivan Manley and Brad Fregger. Activision's version of Shanghai sold approximately 10 million copies.

Mahjong solitaire has appeared in many famous software collections over the years. In 1990, Microsoft included a version called Taipei in its Entertainment Pack for Windows 3.x. Newer operating systems like Windows Vista and Windows 7 include a version called Mahjong Titans. The game has also become very popular on smartphones. The app Microsoft Mahjong has reached millions of downloads on the App Store and Google Play. Other versions exist on various platforms, including the Nintendo Switch in Clubhouse Games: 51 Worldwide Classics.

Mahjongg
Mahjongg

Mathematics can be used to analyze the difficulty of the game. Playing Mahjong solitaire optimally to maximize the chance of clearing all tiles is classified as PSPACE-complete. If a player is allowed to look at the tiles beneath others, the game becomes NP-complete. In a "perfect-information" version, the player knows the position of every tile before the game starts. Even in this version, deciding if all tiles can be removed is NP-complete. An analysis of ten million games using the default turtle layout showed a specific statistic. About 3 percent of those turtle layouts cannot be solved, even if looking below tiles is allowed.

Beyond solo play, the game can be adapted into many different styles. Some electronic versions add "wildcard tiles" that have special functions. Other versions include time limits based on the number of tiles in the initial layout. You can also play with a partner in a competitive mode. In these two-player versions, the goal is to accumulate the most points. Players earn points for each pair removed. You can earn bonus points for removing pairs in a specific sequence. These sequences can include traditional sets like the dragons, the flowers, the seasons, or the winds.

Gnome Mahjong
Gnome Mahjong
662 words

Where will your curiosity go next?

Keep exploring at your chosen reading level.

🖼️ Images & Media (4)
File:Gnome Mahjong.jpg
Gnome Mahjong.jpg
File:Mahjong solitaire-02.jpg
Mahjong solitaire-02.jpg
File:PLATO Mah-Jongg screen.png
PLATO Mah-Jongg screen.png
File:Mahjongg.png
Mahjongg.png
More to explore

What is Nepedia?

A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.