Rummy tile game which is also called Okey or Rummikub was invented by Ephraim Hertzano, a Romanian-born Jew, who immigrated to British Mandate of Palestine (now Israel) in the 1940s. He hand-made the first sets with his family in the backyard of his home. Rummikub is a tile-based game for 2 to 4 players, combining elements of the card game rummy and mahjong. There are 104 number tiles in the game (valued 1 to 13 in four different colors, two copies of each) and two jokers. Players have 14 or 16 tiles initially and take turns putting down tiles from their racks into sets (groups or runs) of at least three, drawing a tile if they cannot play.