Back-to-Back T-Spin Triple
Back-to-Back T-spin Triple is a difficult maneuver in some SRS based games, which in (for example) Tetris DS sends a total of thirteen garbage rows to the opponent. It requires the player to make two T-spin Triples Back-to-Back.
Setups notched on side
LT/JT, the simplest set up. Its flaw is its heavy dependence on T tetrominoes, which could otherwise be held to complete the T-spin.
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TLTL | JTJT | TLJT | JTTL |
Setups involving S and I:
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LSIL | JZIJ |
The core of JTTL can be replaced with two S or Z tetrominoes:
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JSSL | JZZL |
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TIOT | JZTT |
OZJ is arguably the safest and most efficient BtB T-Spin Triple setup. The setup is special in that it takes the least amount of tetrominoes to set up the notch. The player is also given 7 columns of space to stack freely. Perhaps the most unique aspect of this setup lies in the fact that one of the T-Spin Triples can be turned into a T-Spin Double by placing an I into the empty column, a scapegoat for ill-fated garbage. This must be done before the final "lid" piece have been placed at the top of the setup. As an extra bonus, the overhang left over from a complete OZJ can be transferred into a Double Triple 2 setup.
OZJ |
I Abort |
DT2 Transfer |
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Setups notched in center
Setups containing I:
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JILS | IIS | IIJ |
Switching sides
A player may switch sides to clear Back to Back T-spin Triples indefinitely.
Any T-spin line clear is good enough to keep the "Back to Back" alive, which allows for lopsided designs.
These two have interchangeable parts.
See also
- Twist - Explanation of twists such as T-Spins
- - Various methods of creating T-Spins