That brings some memories. I got into tetris around 1988 on a 8086 PC with 5" floopy drives. Somebody gave me a copy of a very early tetris, it was a tiny DOS .com file, and the game was in text mode, written by the original Russians. I must have spent entire weeks on that thing, and when I learned programming, I proceeded to write a whole list of tetris variations, including one hexagonal, one for 3 players on a single PC, and a regular Tetris in assembly that fit on a boot sector. To this day it I open a tetris, I expect the exact rotations as that original version. Never got into these easier random generators - all my clones used full random pieces. Except for one where the machine would always throw you the hardest piece :)