From Hard Drop Tetris Wiki
Sure FD (Japanese name... 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 [[1]] opener.
1st bag
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turning to the left |
turning to the left |
harddrop |
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
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Always TSD is possible. softdrops other than T-pieces are fixed once, but that's all through this bag.
derivation
8-lines PC
34.0% |
27.1% |
15.6% |
14.3% |
9.5% |
PC rate is 67.30%, TSSPC rate is 10.16%, TSDPC rate is 0.00%, 5 filter solutions.
LST Stacking
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An example.
14-lines PC
In fact, this opener alone can theoretically create an infinite PC loop.
3rd bag
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It can always be stacked. The firepower is a little bit. S-pieces, J-pieces, and T-pieces are interchangeable in placement.
4th bag
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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)
75.0% |
66.4% |
46.1% |
43.3% |
43.3% |
PC rate is 100.00%, TSSPC rate is 60.95%, TSDPC rate is 0.00%, 5 filter solutions.