Ajanba TSD
From Hard Drop Tetris Wiki
Ajanba TSD was popularized by the Tetris player ajanba. It resembles the TKI 3 openers but the I piece is moved 1 column to the right. The first O piece needs to come early and the first bag is placed like this:
Eventually, the technique results in 2 T-Spin Doubles within the first 2 bags followed by a Perfect Clear opportunity after 6 cleared lines.
If the I piece shows up late in the second bag, then there is a chance to delay the first T-Spin and build a second T-Slot above. In this case the 2 T-Spin Doubles can be executed in quick succession and there is a Perfect Clear opportunity on top it.