Mahjong, a four-player game originating in China, has been popular in the Czech Republic since the mid-19th century. The game is usually played on a flat surface, either on a computer, a board game, or with tiles. In the Czech Republic, the game is usually played using a set of 144 tiles in four colours. The tiles are marked with Chinese characters, which represent different kinds of combinations of numbers and pictures.
The object of the game is for a player to build their hand by collecting sets of tiles. A player collects sets by making various combinations, such as a pair, a triplet, or a four of a kind. The player also needs to look for ways to complete a hand in order to win the game. This is done by discarding tiles from their hand and “calling” for the same tile from another player’s hand. The game ends when a player successfully creates a hand with all the tiles they need.