This stacking method, discovered by fiddlesworth, produces 12 garbage lines in Tetris DS and Tetris Online (Japan), while using roughly half as many tetrominoes (15 to 21) as the common "three tetrises" opening (30 to 35). It requires Hold piece, SRS, 3-corner T-spin recognition, and 7-piece bag randomizer.
You can perform this stack from an empty playfield if any of the following is true of the first bag of seven tetrominoes:
- S before J
- Z before L
- J before S before T (hold the J)
- L before Z before T (hold the L)
It is especially useful if your first tetromino is S or Z, but it does have a speed penalty on games with a slow soft drop (like Tetris DS).
Single-Triple-Single[]
T-spin Single[]
Start with an S–J or Z-L:
Setup with S and J |
Mirror image |
Build it (S and J depicted)
O before Z |
Z before O |
Soft-drop a T and spin it:
Soft-drop a T |
Rotate right |
T-spin single |
T-spin Triple[]
Build it more. You'll need to soft-drop the S, and you'll need to switch the O and Z if you got Z before O in the first bag:
After single |
Drop J before O |
Or drop O before J |
After single |
Drop I before Z |
Or drop Z before I |
Or drop J first, and Z before O |
Soft-drop a T and spin it twice:
Soft drop T |
Rotate left |
Rotate left again |
Back-to-back |
T-spin Single[]
Make another T-spin single. If your stack doesn't look exactly like this, don't worry. You're pretty much improvising at this point. This will send an additional 3 lines of garbage, bringing the total to 12 lines sent.
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Adjusting Your Strategy[]
Sometimes the 2nd T-spin single needs to be skipped. If you've received a lot of garbage, you may need to avoid overstacking and find the quickest path to uncover the garbage and clear it away. Other times, the garbage you've received may make the 2nd TSS impossible (or may open up better possibilities):
Open Corner[]
This is not a 3-corner T-spin, so no reward is given.
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There's a better way to handle this situation:
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Lucky Hole[]
Here you can make a back-to-back T-spin double after the T-spin triple with a little help from the garbage randomizer:
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