S/Z Passage
From Hard Drop Tetris Wiki
The S/Z Passage is a Z-Spin Single (or S-Spin Single in the mirrored setup) setup that leads to a T-Spin Double. The order of the Z-Spin Single's overhang and the T-Spin Double's overhang are interchangeable. Both overhangs can be any tetrimino, including T.
Main Formations
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