From Hard Drop Tetris Wiki
Double Triple Cannon, sometimes referred to as DT Cannon or DT, is a T-Spin combo designed by player TKI. The setup is essentially a T-Spin Double followed by a T-Spin Triple. A player utilizes the T-Spin Triple wallkick in SRS to make a T-Spin Double that leads into a T-Spin Triple. In Tetris variants without instant lockdown it is best to hold the soft drop button until the T-Spin Double has been completed. This makes it instantly drop "through the gap" so the T tetromino doesn't rotate early and end up in the wrong spot.
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Empty Field Setups
Because so many DT Cannon setups exist, the player can choose a setup that fits the order of their opening set of pieces. TKI's Signature
Basic DT |
Bonus TST |
IT Balance
IT Balance 1 |
IT Balance 2 |
IT Balance 3 |
Overhang Var. |
IT Balance With 13 pieces, |
TZ Base Setups
TZ with JL overhang |
TZ with SL overhang |
TZ with OZ overhang |
TZ with JL overhang |
JO Base Setups
For these setups, build the JO base first, the fill second, and the OJ structure on the left last.
JO Base 1 |
JO Base 2 |
Other Setups
O Base |
LS Base |
JZ Base |
LZ Base |
Situational Setups
Lower Notch and Overhang
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Higher Notch
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