The official Tetris rules state that you get one of each type in groups of seven; aka bags[1]. In other words, you get a maximum of two of a type in a row. [1]

The official Tetris rules state that you get one of each type in groups of seven; aka bags[1]. In other words, you get a maximum of two of a type in a row. [1] http://tetris.wikia.com/wiki/Random_Generator http://tetris.wikia.com/wiki/Random_Generator