From Hard Drop - Tetris Wiki

The ADT Opener is a T-Spin Single opener created by user ADT_ExE during July 2022. The opener starts with a T-spin Single, then has multiple routes that can be taken. Huge thanks to the COpener Gaming server for helping develop the opener COpener gaming server. Thank you Claramay for cleaning up the page.

Contents 1 First Bag 2 Second Bag and Onwards 2.1 Third Bag 2.2 Fourth Bag 2.3 Freestyling the Third Bag 2.4 8-Line Perfect Clear Setup 2.5 DT Cannon Route 2.6 Early I TSD route

First Bag

Second Bag and Onwards

The second bag can always be built.

Third Bag

The third bag requires the Z piece before the I piece and T piece (if the I piece is placed before the Z piece, it will clear the line that the Z piece needs to sit on). This breaks Back-to-Back.

Fourth Bag

The fourth bag can always be built, and sets up a Triple Double Attack.

Freestyling the Third Bag

If the intended build fails, you can skim the line that covers the hole and then freestyle T-Spins. Some examples of freestyling are shown below.

8-Line Perfect Clear Setup

The second bag can alternatively be built the following way to achieve a Perfect Clear (or PC) after 8 lines. The build rate with the T-Spin Double is 40%, and with skimming it is raised to 66%. The perfect clear has a 95.08% chance to PC with 26 minimals.

Below are some examples of the most common minimals, however with good PC knowledge, you should be able to find the solves on your own fairly easily.

DT Cannon Route

Another alternate second bag build that sets up a DT Cannon.

Examples of how the DT Cannon can be completed are shown below.

Early I TSD route

Makes a broken DT Cannon, can be made if I is first or behind J and S