T-Spin Mini Double
From Hard Drop Tetris Wiki
The T-Spin Mini Double or Mini T-Spin Double is a setup invented by MatMayuga. It is one of the hard setups to perform, as it is tricky. Some games, such as Tetris Party Deluxe and NullpoMino (with the spins option set to "All") refer to it as the title of this page (T-Spin Mini Double/Mini T-Spin Double), while other games refer to it as a regular T-Spin Double or a regular double line clear, depending on the game.