Manhole Stacking
From Hard Drop Tetris Wiki
Manhole Stacking (マンホール積み) is a TD Attack Opener invented by Sioyaki.
1st Bag
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Setup rates are 42.22% if not including Mirrored and 56.19% if included.
2nd Bag
TST A (Always) |
TST B (L>O) |
TST C (L>S) |
TST D (S>L) |
You can always do TST. You can use "TST A" by itself, add "TST B", or a combination of "TST C" and "TST D". It is up to you.
Derivation
2nd Bag TST D
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You can always do TSS.