From Hard Drop Tetris Wiki
Imperial cross is essentially a T-Spin Triple with an extra gap, turning it into a cross. Two T-Spin doubles are reaped from this setup. A T-Spin triple wallkick, followed by a double rotation, is used to place the first T piece in the correct position.
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Drop + No Line Clear
Overhang
O-1 |
I-1 |
J-1 |
J-2 |
J-3 |
J-4 |
L-1 |
L-2 |
L-3 |
S-1 |
S-2 |
Z-1 |
Z-2 |
T-1 |
T-2 |
T-3 |
T-4 |
Notch (Overhang Base)
O-1 |
I-1 |
J-1 |
J-2 |
J-3 |
J-4 |
L-1 |
L-2 |
L-3 |
L-4 |
S-1 |
S-2 |
Z-1 |
Z-2 |
T-1 |
T-2 |
T-3 |
T-4 |
Notch (T-Spin Triple Wallkick)
I-1 |
J-1 |
L-1 |
S-1 |
T-1 |
Drop + Line Clear
Notch (Overhang Base)
O-1 |
O-2 |
J-1 |
J-2 |
S-1 |
T-1 |
T-2 |
Opening
In games that only reward no-kick T-Spin Single and Double like Tetris Evolution, Imperial Cross becomes a useful opening.
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TSD -> Imperial Cross
Stacking SL and ZJ results in a T-Spin Double that reveals an Imperial Cross.
Start |
Fill side/First TSD |
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Alternatives
The second T-Spin Double can be replaced with a T-Spin Triple.
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The replacement of the second T-Spin Double can lead into a Triple Double Attack.
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