Square tiles with each has 4 different images, one for each edge. There are 3 sets (different colors) used for the different player numbers. 1 is placed in the middle. Each player gets the same amount of the remaining tiles (all tiles from 1 color are used). All players play at the same time. They place their tiles in the middle with matching (equal) images on all touching edges (domino rules). The first player who places his last tile in the middle, wins the game. —user summary