ST Stacking

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See also: ST Stacking Setups

ST stacking is a more-or-less sustainable (under Random Generator) method of stacking tetrominoes to form successive 4-line clears and T-spins. In Tetris DS standard mode, this stacking method achieves near maximum points per line. It's superficially similar to one of the T-spin triple setups but allegedly easier to learn.

    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG

First build this

    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
S   GGGGGG
SS GGGGGGG
 S GGGGGGG

Drop an S

    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
SPPPGGGGGG
SSPGGGGGGG
 S GGGGGGG

Spin a T

    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
----------
----------
 S GGGGGGG

T-spin Double

    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
 S GGGGGGG

Leaves one row
of garbage

    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
 G GGGGGGG

Build more layers

    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
SPPPGGGGGG
SSPGGGGGGG
 S GGGGGGG
 G GGGGGGG

Another S and T

    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
----------
----------
 S GGGGGGG
 G GGGGGGG

T-spin Double

    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
 S GGGGGGG
 G GGGGGGG

Leaves another
identical row

After a few rows of garbage have accumulated, use I tetrominoes to break it down:

    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
 G GGGGGGG
 G GGGGGGG
 G GGGGGGG
 G GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
IG GGGGGGG
IG GGGGGGG
IG GGGGGGG
IG GGGGGGG

Drop I

    GGGGGG
   GGGGGGG
   GGGGGGG
SPPPGGGGGG
SSPGGGGGGG
 S GGGGGGG
IG GGGGGGG
IG GGGGGGG
IG GGGGGGG
IG GGGGGGG

Another S and T

    GGGGGG
   GGGGGGG
   GGGGGGG
----------
----------
 S GGGGGGG
IG GGGGGGG
IG GGGGGGG
IG GGGGGGG
IG GGGGGGG

T-spin Double

    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
 S GGGGGGG
IG GGGGGGG
IG GGGGGGG
IG GGGGGGG
IG GGGGGGG

Build more

    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
 S GGGGGGG
IGIGGGGGGG
IGIGGGGGGG
IGIGGGGGGG
IGIGGGGGGG

Drop next I

    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
 S GGGGGGG
----------
----------
----------
----------

Tetris

    GGGGGG
   GGGGGGG
   GGGGGGG
    GGGGGG
   GGGGGGG
   GGGGGGG
 S GGGGGGG