Illumination SD

Illumination SD is an opener similar to Sdpc conceived by Westl with help from the COpener server. Although the PC chance is slightly lower, it offers a wide variety of continuations that result in a clean field. This opener is especially useful in games like TETR.IO due to Back-to-Back bonus.

First Bag (TSS)
The first bag is the same as SingleYou. Note that the L and J pieces are interchangeable.

Second Bag (100% TSD)
This is 100% buildable with 180 spins. Once again, L and J are interchangeable.

Continuations
The field left has a 90.99% chance of PC with 10 minimals. The most common solution may result in a TSD, and several others may result in a Tetris.

If one cannot PC or wishes to transition into midgame, there are 3 T-Spin paths that may be used:

Path 1
This path requires I before J.

6th Bag (100% TSD + Tetris)
After the 6th bag, one can transition into 5-4 stacking. Note while all the other bags are 100% stackable, the 5th bag may fail on specific orders of OSZLT.

Path 2
This path requires J before I.

10-Height Perfect Clear
You have a small chance to do a 10-height perfect clear if L and S (or J and Z if mirrored) come early in the 4th bag.

STSD (Z -> S)
An STSD can almost always be stacked if Z comes before S.

Do note that this is not stackable if J and T come before both Z and I.

TD Attack (Z -> JS)
One can also stack a Triple Double Attack if Z comes before both J and S.

The 5th bag can mostly be freestyled, but here are some example stacks:

Upstack Continuation (100%)
This continuation can always be built due OSZ and JL being interchangeable. It allows for a wide variety of followups.

Hold the T piece and place it last.

One can usually make a T-Spin Double afterwards. The board after this will be extremely spike-focused. Again, one can freestyle, but here are some examples:

Alternatively, it is extremely greedy, but one could make a BT Cannon using the 5th and 6th bags. This has potential to create spikes in the 20-35 range if used properly.

Note that the 6th bag fails when I and T come before S or Z and L comes after. If this occurs, one can either simply place the I piece on the side, or freestyle. Here is an example of a possible continuation.

Every bag can always be stacked, although you can go into freestyle at any time.

Path 3
This path is always stackable. It was discovered by swng and ReallyNotSomeone.

6th Bag (100% Tetris)
Afterwards, one can make a donation with O and go into 5-4 stacking.