Claw Machine

Claw Machine is a Switchback opener created by HDChung, and also contributed by Winterfrost, mLurker, and cat. This opener is notable that it can be continued to T-Spin Triple tower relatively reliably.

First Bag

Second Bag

Note that you only need to fill the first row of the left side for a T-Spin Double.

It is also possible to stack like these, but no continuation is researched yet.

Third bag

One can always possible to stack like this if 180° spin is enabled.

Alternatively, those two continuations are also considerable but the second one would not have 7-2 stacking continuation while it can be always stacked.

Fourth Bag and Onwards

Triple T-Spin Tower

The left side can be filled in freestyle. These are some examples.

7-2 Stacking

early T bag can continue this opener into 7-2 stacking. The following example shows conversion into LST stacking.

5-bag Perfect Clear

With 180° spin, it is possible to stack like this most of the time.

In SRS+ (Tetr.io), note that this 180° L spin is possible.

This will lead to a 100% Perfect Clear field with 9 minimal solutions, all of which are shown below.

These are the solutions which might lead to potential T-Spin/Tetris.

Lasso Triple T-Spin

While having some dependencies, this continuation will lead to a flat residue. After building an overhang and performing a T-Spin Triple, use S or Z for another overhang for the lower T-Spin Triple. S overhang, Z overhang, and T overhang are possible, but they are not recommended.

hold T

I overhang

O overhang

J overhang

L overhang

Z overhang

S overhang

T overhang