From Hard Drop Tetris Wiki
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.
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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.