Each Mahjong tileset is made up of 144 tiles. There are 136 matching tiles, 4 Flowers, and 4 season tiles. The actual tiles will vary depending on the tileset you have selected but each set maintains the same groups and relationships. The Flower and Season tiles don’t match exactly, but there is always a visual relationship among the tiles in each group. You can match any Flower tile with any other Flower tile and any Season tile with any other season tile.