Sure FD

Sure FD (シュアFD) is one of the openers starting with T-Spin Fin Single. the first bag can always be stacked and the terrain to be left is clean. This opener was invented by Sioyaki. It is a [] opener.

1st bag
TSS is always possible. This stacking is possible if the L-piece is faster than the J-piece. If the J piece is faster than the L piece, flip it left or right.

2nd bag
Always TSD is possible. softdrops other than T-pieces are fixed once, but that's all through this bag.

8-lines PC
PC rate is 67.30%, TSSPC rate is 10.16%, TSDPC rate is 0.00%, 5 filter solutions.

LST Stacking
An example.

14-lines PC
In fact, this opener alone can theoretically create an infinite PC loop.

3rd bag
It can always be stacked. The firepower is a little bit. S-pieces, J-pieces, and T-pieces are interchangeable in placement.

4th bag
It can always be stacked. No firepower. O-pieces, Z-pieces, and S-pieces are interchangeable in placement. J-pieces are stacked last.

5th bag(PC)
PC rate is 100.00%, TSSPC rate is 60.95%, TSDPC rate is 0.00%, 5 filter solutions.