From Hard Drop Tetris Wiki
F-Spin is an Polymer T-Spin opener that usually results in a Iso-T-Spin Triple in the second bag and a T-Spin Triple in the third bag into Super T-Spin Double in the fourth bag. Note that Iso-T-Spin Triple can only be done on games which have 180° rotations and SRS 180° kicks, like Tetr.io.
First bag
The second setup has a better build chance, but needs more key presses.
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Variant 1
The main and best continuation.
Second bag
S>Z
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Soft drop |
Counter-clockwise |
180° Rotation |
Counter-clockwise |
Third bag
100% with 180 rotations.
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Hold soft drop |
180° Rotation |
180° Rotation |
Clockwise |
Hold soft drop |
Clockwise |
180° Rotation |
Clockwise |
Fourth bag
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if you can stack JZ like this, it will result in a better stack.
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Perfect Clear after 8 lines
46.7%, 97.7% early S. 4 minimals.
Save Z |
Save J |
Save O |
Save Z |
TSD into DT Cannon
When it is impossible to build the main continuation in the second bag, you can freestyle the STMB Cave or use these T-Spin Double into DT Cannon continuations (found by Zera).
L>S (O first)
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Counter-clockwise |
Hold softdrop |
Counter-clockwise |
180° Rotation |
Clockwise |