As other comments have noted, it's easy to get this implementation into a state where it throws "S" pieces at you over and over. It would be better if it used

As other comments have noted, it's easy to get this implementation into a state where it throws "S" pieces at you over and over. It would be better if it used a variant of the Random Generator algorithm, which guarantees an equal distribution of pieces. https://tetris.fandom.com/wiki/Random_Generator https://tetris.fandom.com/wiki/Random_Generator Lovetris should choose, from the remaining pieces in the current bag, the one that it thinks is "best".