Maybe not an "official" tetris game, but the the BasTet randomizer is worth a mention - it tries to give you the worst possible block at all times. >:)
Bastet's randomizer can be defeated by creating a huge overhang near the top of the playfield, then building your actual stack far below it. The evaluation algorithm works by trying to drop every piece in every horizontal position, and choosing the piece that fits the worst, but it only tries dropping pieces straight down and doesn't take sliding or navigating underneath overhangs into account.