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)

1st Bag

1st Bag

1st Bag Residue

The first bag is the same as SingleYou. Note that the L and J pieces are interchangeable.

Second Bag (100% TSD)

2nd Bag J -> L

2nd Bag L -> J

2nd Bag Residue

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.

3rd Bag (TSD, I -> J)

3rd Bag

3rd Bag Residue

4th Bag (100% TSD)

4th Bag

4th Bag Residue

5th Bag (TSD)

5th Bag (OSZ Ball)

5th Bag Residue

6th Bag (100% TSD + Tetris)

6th Bag L -> S

6th Bag S -> L

6th Bag Residue

6th Bag Residue

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.

3rd Bag (TSD, J -> I)

3rd Bag

3rd Bag Residue

4th Bag

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.

TI

JI

JO

ZJ

STSD (Z -> S)

An STSD can almost always be stacked if Z comes before S.

4th Bag L -> O

4th bag O -> L

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.

4th Bag

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

5th Bag - Early Z

5th Bag - Early L

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:

5th Bag TSD

5th Bag TSD

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.

5th Bag

6th Bag J -> O

6th Bag O -> J

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.

6th Bag TSD

7th Bag TSD

8th Bag TSD + Tetris

9th Bag TST

10th Bag TSD

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.

3rd Bag (100% TSD)

3rd Bag J -> L

3rd Bag L -> J

3rd Bag Residue

4th Bag (100% TSD)

4th Bag

4th Bag Residue

5th Bag (100% TSD)

5th Bag

5th Bag Residue

6th Bag (100% Tetris)

6th Bag

6th Bag Residue

Afterwards, one can make a donation with O and go into 5-4 stacking.

See Also

SingleYou, Pinwheel, Keyor PC, Submarine, Sure FD, Technical TSS, Stitch, OT Cannon, Glacier - openers with the same attack sequence

SingleYou, SDPC Spin, Tenespin, Nusespin, Nakamuraa's Voracity - openers with the same first bag