Perfect Clear Opener (パフェクリテンプレ)
A very popular perfect clear opener where you have a 84.64% chance of doing a perfect clear if you have I on hold. Often abbreviated as PCO.
If you are unable to hold your I, your chance of doing a perfect clear decreases to 61.19%
The only potentially non-straightforward solution would be the one using IJZS. Rotate CCW CCW CCW.0
These solutions are also used in Grace System when you have a vertically placed T.
There is a slight chance (approximately 2%) to do a 2-height perfect clear after doing your first PC. Example.
These are some followups that you could do when a perfect clear is not possible.
The simplest way of recovering is to build a Tetris after sliding in a L or J underneath, as shown on the second image. Note the placement of S on the third image.
It is often possble to build a Kaidan when you can't do a perfect clear. You will be able to immediately follow up with a Tetris afterwards. Notice how S and Z are placed on the third image.
Compare the placement of S on your stack between when you would build Kaidan (first row) and when you would build a Tetris (second row)
Depending on your next pieces after placing your S like the first image below, you could build a TST instead of a Tetris.
These are alternate recovery patterns that you can use. Refer to this fumen to see how you can spin in certain pieces while setting these up.