There are many versions of Mahjong games. They differ in level of complexity, design and audience age. One of the hardest online Mahjong games is the Solitaire Mahjong. To complete this game, you need to disassemble the pyramid by finding the same tiles along its edges. It is given 20 minutes for one game.
If you have a difficult situation, when there is no way out, the game has the ability to shuffle the tiles of the entire pyramid. It can relieve you of stress, improve observation and dispel boredom.