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Main Article: ST Stacking

Base[]

Two Columns Wide[]

Two columns wide bases do not have the modular flexibility of three columns wide bases. They, however, provide more room to stack the field. The simplicity of required tetrominos in the setups also makes them easy to learn.

SPPPGGGGGG
SSPGGGGGGG
TetSTetGGGGGGG
SPPPGGGGGG
SSPGGGGGGG
TetSTetGGGGGGG

ST

LTetTetGGGGGGG
LPPPGGGGGG
LLPGGGGGGG
LTetTetGGGGGGG
LPPPGGGGGG
LLPGGGGGGG

LT

TetTetTetGGGGGGG
SPPPGGGGGG
SSPGGGGGGG
LSTetGGGGGGG
LPPPGGGGGG
LLPGGGGGGG

LST

Three Columns Wide[]

Unlike the two columns method, three columns wide bases have the advantage of modular cores. A player can opt for a different core to accomodate an unfavorable preview. Although the player has less room to stack the field, tetromino dependence is minimized. I tetrominos are also not needed to fill in leftover gaps.

JJPPPGGGGG
JOOPGGGGGG
JOOTetGGGGGG
JJPPPGGGGG
JOOPGGGGGG
JOOTetGGGGGG

OJT

OOPPPGGGGG
OOLPGGGGGG
LLLTetGGGGGG
OOPPPGGGGG
OOLPGGGGGG
LLLTetGGGGGG

LOT

ZZPPPGGGGG
JZZPGGGGGG
JJJTetGGGGGG
ZZPPPGGGGG
JZZPGGGGGG
JJJTetGGGGGG

JZT

LSPPPGGGGG
LSSPGGGGGG
LLSTetGGGGGG
LSPPPGGGGG
LSSPGGGGGG
LLSTetGGGGGG

LST

Alternatives[]

ST L Start
For two column wide ST bases, an L start may be desired if an L comes early in preview order. An L start will also fill in the first leftover gap created by the S tetromino. Note that the notch for the L start is one row lower than that of an S start.

TetTetTetGGGGGGG
TetTetTetTetGGGGGG
TetTetTetGGGGGGG
TetTetTetGGGGGGG
TetTetTetTetGGGGGG
TetTetTetGGGGGGG
LTetTetGGGGGGG
LPPPGGGGGG
LLPGGGGGGG
TetTetTetTetTetTetTetTetTetTet
TetTetTetTetTetTetTetTetTetTet
TetTetTetGGGGGGG
TetTetTetTetGGGGGG
TetTetTetGGGGGGG
TetTetTetGGGGGGG
SPPPGGGGGG
SSPGGGGGGG
LSTetGGGGGGG
TetTetTetTetTetTetTetTetTetTet
TetTetTetTetTetTetTetTetTetTet
TetTetTetTetTetTetTetTetTetTet
TetTetTetTetTetTetTetTetTetTet
TetTetTetGGGGGGG
STetTetTetGGGGGG
SSTetGGGGGGG
TetSTetGGGGGGG
LSTetGGGGGGG

After performing four T-Spin Doubles using an ST base and plugging the leftover gap with an I, a player can use the L Start base in place of an S base. Note that the notch for the L base is one row lower than that of an S base.

TetTetTetTetTetTetTetTetTetTet
TetTetTetTetTetTetTetTetTetTet
TetTetTetTetTetTetTetTetTetTet
TetTetTetTetTetTetTetTetTetTet
TetTetTetGGGGGGG
TetSTetGGGGGGG
TetSTetgGGGGGG
TetSTetGGGGGGG
TetSTetGGGGGGG
TetTetTetTetGGGGGG
TetTetTetGGGGGGG
TetTetTetGGGGGGG
TetTetTetTetGGGGGG
TetTetTetGGGGGGG
TetSTetGGGGGGG
TetSTetgGGGGGG
TetSTetGGGGGGG
TetSTetGGGGGGG
TetTetTetTetGGGGGG
TetTetTetGGGGGGG
LTetTetGGGGGGG
LPPPGGGGGG
LLPGGGGGGG
ISTetGGGGGGG
ISTetgGGGGGG
ISTetGGGGGGG
ISTetGGGGGGG

ST JL Alternative
For two column wide ST bases, a player often waits for three or more T-Spin Doubles before filling in the leftover gap with an I tetromino. A player may opt to use a J to fill in the leftover gap formed after two successive T-Spin Doubles. Identical to the ST L Start, an L will be used as the base for the next T-Spin Double, after which regular ST base stacking may resume. This method can be used repeatedly to eliminate the need of using an I tetromino to fill in the leftover gaps normally created from only using S tetrominos.

TetTetTetGGGGGGG
TetTetTetTetGGGGGG
TetTetTetGGGGGGG
TetTetTetGGGGGGG
TetTetTetTetGGGGGG
TetTetTetGGGGGGG
TetTetTetGGGGGGG
TetSTetGGGGGGG
TetGTetGGGGGGG
TetTetTetGGGGGGG
TetTetTetTetGGGGGG
TetTetTetGGGGGGG
LTetTetGGGGGGG
LPPPGGGGGG
LLPGGGGGGG
JJTetGGGGGGG
JSTetGGGGGGG
JGTetGGGGGGG
TetTetTetTetTetTetTetTetTetTet
TetTetTetTetTetTetTetTetTetTet
TetTetTetGGGGGGG
STetTetTetGGGGGG
SSTetGGGGGGG
LSTetGGGGGGG
JJTetGGGGGGG
JSTetGGGGGGG
JGTetGGGGGGG

Notch[]

Type 1[]

Type 1 notches can be used as openers for ST bases and for three column wide bases because they are three rows high. Type 1 notches require only two tetrominos to complete and are interchangeable with one another.

TetTetTetTetGGGGGG
TetTetTetGGGGGGG
TetTetTetGGGGGGG
TetTetTetTet11GGGG
TetTetTet111GGGG
TetTetTet111GGGG
TetTetTetTetOOGGGG
TetTetTetJOOGGGG
TetTetTetJJJGGGG
TetTetTetTetOOGGGG
TetTetTetJOOGGGG
TetTetTetJJJGGGG

JO

TetTetTetTetLLGGGG
TetTetTetOOLGGGG
TetTetTetOOLGGGG
TetTetTetTetLLGGGG
TetTetTetOOLGGGG
TetTetTetOOLGGGG

OL

TetTetTetTetZJGGGG
TetTetTetZZJGGGG
TetTetTetZJJGGGG
TetTetTetTetZJGGGG
TetTetTetZZJGGGG
TetTetTetZJJGGGG

JZ

TetTetTetTetSSGGGG
TetTetTetSSLGGGG
TetTetTetLLLGGGG
TetTetTetTetSSGGGG
TetTetTetSSLGGGG
TetTetTetLLLGGGG

LS

Type 2[]

Type 2 notches cannot be used as an opener because they are only one row high. Type 2 notches require only two tetrominos to complete and are interchangeable with one another.

TetTetTetGGGGGGG
TetTetTetGGGGGGG
TetTetTetTetGGGGGG
TetTetTet222GGGG
TetTetTet222GGGG
TetTetTetTet22GGGG
TetTetTetOOJGGGG
TetTetTetOOJGGGG
TetTetTetTetJJGGGG
TetTetTetOOJGGGG
TetTetTetOOJGGGG
TetTetTetTetJJGGGG

JO

TetTetTetLLLGGGG
TetTetTetLOOGGGG
TetTetTetTetOOGGGG
TetTetTetLLLGGGG
TetTetTetLOOGGGG
TetTetTetTetOOGGGG

OL

TetTetTetJJJGGGG
TetTetTetZZJGGGG
TetTetTetTetZZGGGG
TetTetTetJJJGGGG
TetTetTetZZJGGGG
TetTetTetTetZZGGGG

ZJ

TetTetTetSLLGGGG
TetTetTetSSLGGGG
TetTetTetTetSLGGGG
TetTetTetSLLGGGG
TetTetTetSSLGGGG
TetTetTetTetSLGGGG

SL

Not Recommended
This notch is not recommended because it requires the usage of the T tetromino, of which can be used for the T-Spin Double. This setup can be stacked on top of other type 2 notch setups but the opposite cannot be done because of the overlapping T tetromino obstruction. This setup should only be used for emergency cases because it will also force the usage of two Z tetrominoes to create the next notch.

TetTetTetTetGTGGGG
TetTetTetSTTGGGG
TetTetTetSSTGGGG
TetTetTetTetSTGGGG
TetTetTetSTTGGGG
TetTetTetSSTGGGG
TetTetTetTetSGGGGG

ST

Type 2 openings Practical openings for type 2 include the following.

TetTetTetTetTet