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Ultimate Mahjongg 15 is a one or two player Shanghai (solitaire mahjongg) game. It is so named because among its many features are fifteen types of mahjongg style of game.

The player can choose from the following types of game, the object in each is to match tiles and thus remove all of them from the board as quickly as possible:
  • Solitaire: The traditional tile matching game where the object is to match pairs of tiles
  • Two Player: A turn based two-player version of Solitaire. A player's turn ends when they make a match or their time runs out.
  • Waterfalls: All the tiles are displayed face up. The player can remove any number of tiles in a single move, the only condition being that they must be adjacent to one another and they must be identical.
  • Sap Tim Pun: The name means 'ten and a half' and the game is similar to pontoon or blackjack. The tiles are assigned a numeric value. Players start with one tile and must draw additional tiles with the object of getting close to ten and a half points but not exceeding it.
  • Memory: All the tiles are shown face down and only the selected tiles are flipped.
  • Arcade: the player must match and remove tiles from a wall. As the game progresses more rows are added to the bottom of the wall. The aim is to remove all the tiles or to score as highly as possible before the wall reaches the top of the board.
  • Nanjing: pairs of tiles can only be removed if they can be connected by a horizontal, vertical or diagonal line.
  • Tournament: Here the player must complete ten consecutive solitaire layouts.
  • Online Play: Play against opponents across the internet, the default match is the head-to-head two player game but this can be changed.
  • Shisen: This is a variation on Solitaire that is also known as 'Four Rivers'. Any two matching tiles can be removed if they can be connected in two turns or less by a line an uninterrupted line.
  • Triplets: In this game the player removes three or more matching tiles. Rows of matching tiles are created by swapping any two adjacent tiles.
  • Freecell: This is a version of Solitaire in which the game board has four vacant cells. The player can move tiles into these cells from the main board in order to release other tiles that may be blocked.
  • Slide Puzzle: Here the object is to arrange the tiles into a specific order.
  • Dragon Hunter: Here the object is to locate all the dragon tiles without uncovering any of them.
  • Double Deck: This is Solitaire played with two Mahjongg decks, or 288 tiles.
In addition to these games the player can choose from over 450 tile sets, 2000 backgrounds, 400 different Mahjongg board layouts and a variety of styles of background music. The player can also create their own layouts and tile sets.
Games can be further customised by changing specific settings such as timing each game, limiting the time of each move, or having no timing at all.


Ultimate Mahjongg 15 Windows The rules option allows the player to customise the level of difficulty for each game type
Ultimate Mahjongg 15 Windows Dragon Finder plays like Minesweeper. Tiles with no dragons near them have been removed. A tile set with numbers on is essential for this game
Ultimate Mahjongg 15 Windows Creating a new layout is easy with the game's drag and drop interface
Ultimate Mahjongg 15 Windows A Memory game in progress. Here two tiles have just been matched. The sparkle effect only occurs on certain tiles and can be disabled

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piltdown_man (201782) added Ultimate Mahjongg 15 (Windows) on Apr 05, 2012