Stitch

Stitch is a skimming T-Spin Single opening setup. It can be continued with Back-to-Back T-Spin Double and has more than 99% PC chance at the third bag. The setup is found by players metallicLurker and Octupus Tea.

First bag
Stitch has two 1st bag patterns leaving the same residue, and the setup rate is 84.6%.

Pattern A is always buildable with early S, Z and 180 rotations, and Pattern B resembles Outlogic SD.

4-Line Perfect Clear
Pieces left for the second PC are listed below each solve.

The chance for a 4-line Perfect Clear after the first bag is 11.43%.

Pattern A with Held I

 * 6 additional minimal solutions (29.05% with all 7 solutions):

Pattern B with Held I

 * 3 additional minimal solutions (21.67% PC rate with all 4 solutions):

TSD into 8-line Perfect Clear
The backup pattern should be used when the sequence is O→L→S; otherwise, the main pattern is always applicable.

Main pattern

 * 99.68% PC chance, listed solutions.

These 12 solutions are picked to minimize the chance of J/L DPC Setups.

The pieces saved for DPC Setups are shown under the solutions.

Solutions with T-Spin
2 Additional solutions for potential T-Spin Single.

The chance of getting extra TSS or TSD is 36.67% and 13.49%, respectively.

Backup pattern

 * 99.25% PC chance, 11 minimal solutions.

Additional pattern 1

 * 98.49% PC chance, 7 minimal solutions.

The chance of getting extra TSS or TSD is and 34.76% and 20.00%, respectively.

Additional pattern 2

 * 99.80% PC chance, 8 minimal solutions.

The chance of a Tetris PC is 29.29%.

First bag skimming pattern
There are several skimming patterns resulting in the same remnants as the initial build.

The setup rate increases to 95.28% when including all skimming patterns.

Back-to-Back continuations
Only a handful of continuations are listed, and they may not cover all possible bags.