Back-to-Back Chaining Methods: Difference between revisions

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Line 5: Line 5:
[[Twist|T-spin]] singles are the easiest to spot and to exploit in multiplayer. Not utilizing them will only put you at a disadvantage against an opponent who does. In ''[[Tetris Worlds]]'', T-spin singles with the T tetromino's flat side against the wall don't send garbage, but in ''[[Tetris DS]]'', they do.
[[Twist|T-spin]] singles are the easiest to spot and to exploit in multiplayer. Not utilizing them will only put you at a disadvantage against an opponent who does. In ''[[Tetris Worlds]]'', T-spin singles with the T tetromino's flat side against the wall don't send garbage, but in ''[[Tetris DS]]'', they do.
{|
{|
|{{pfstart}}
|<playfield>
{{pfrow| |-| | | | | | | | }}
-      
{{pfrow|-|-|-| | | | | | | }}
---      
{{pfrow| |G|G|G|G|G|G|G|G|G}}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfend}}
</playfield>
|{{pfstart}}
|<playfield>
{{pfrow|T| | | | | | | | | }}
T        
{{pfrow|T|T| | | | | | | | }}
TT       
{{pfrow|T|G|G|G|G|G|G|G|G|G}}
TGGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfend}}
</playfield>
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | | | | | }}
         
{{pfrow|T| | | | | | | | | }}
T        
{{pfrow|T|T| | | | | | | | }}
TT       
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfend}}
</playfield>
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | | | | | }}
         
{{pfrow|T| | | | | | | | | }}
T        
{{pfrow|T|T| | | | | | | | }}
TT       
{{pfrow|G|G|G|G|G|G|G|G|G|I}}
GGGGGGGGGI
{{pfrow|G|G|G|G|G|G|G|G|G|I}}
GGGGGGGGGI
{{pfrow|G|G|G|G|G|G|G|G|G|I}}
GGGGGGGGGI
{{pfrow|G|G|G|G|G|G|G|G|G|I}}
GGGGGGGGGI
{{pfend}}
</playfield>
|}
|}


{|
{|
|- valign="top"
|- valign="top"
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | |G| |-| }}
      G -  
{{pfrow| | | | |G|G|G|-|-|-}}
    GGG---
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfend}}
</playfield>
Place T
Place T
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | |G| | |T}}
      G T
{{pfrow| | | | |G|G|G| |T|T}}
    GGG TT
{{pfrow|G|G|G|G|G|G|G|G|G|T}}
GGGGGGGGGT
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfend}}
</playfield>
Soft drop and<br>rotate left
Soft drop and<br>rotate left
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | | | | | }}
         
{{pfrow| | | | | | |G| | |T}}
      G T
{{pfrow| | | | |G|G|G| |T|T}}
    GGG TT
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfend}}
</playfield>
T-spin single
T-spin single
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | | | | | }}
         
{{pfrow| | | | | | |G| | |T}}
      G T
{{pfrow| | | | |G|G|G| |T|T}}
    GGG TT
{{pfrow|G|G|G|G|G|G|G|I|G|G}}
GGGGGGGIGG
{{pfrow|G|G|G|G|G|G|G|I|G|G}}
GGGGGGGIGG
{{pfrow|G|G|G|G|G|G|G|I|G|G}}
GGGGGGGIGG
{{pfrow|G|G|G|G|G|G|G|I|G|G}}
GGGGGGGIGG
{{pfend}}
</playfield>
Drop I for<br>
Drop I for<br>
back-to-back tetris
back-to-back tetris
Line 90: Line 90:
If a situation is not readily available, create one if you don't already have a BtB chain going.
If a situation is not readily available, create one if you don't already have a BtB chain going.
{|
{|
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | |G| | | }}
      G  
{{pfrow| | |G| | | |G| | | }}
  G   G  
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G| | |G}}
GGGGGGG  G
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfend}}
</playfield>
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | |G| | | }}
      G  
{{pfrow| | |G| | | |G| | | }}
  G   G  
{{pfrow|G|G|G|G|G|G|G|O|O| }}
GGGGGGGOO
{{pfrow|G|G|G|G|G|G|G|O|O|G}}
GGGGGGGOOG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfend}}
</playfield>
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | | | | | }}
         
{{pfrow| | | | | | |G| | | }}
      G  
{{pfrow| | |G| | | |G| | | }}
  G   G  
{{pfrow|G|G|G|G|G|G|G|O|O| }}
GGGGGGGOO
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfrow|G|G|G|G|G|G|G| |G|G}}
GGGGGGG GG
{{pfend}}
</playfield>
|}
|}


This one works even on ''Tetris Worlds'' because the T's back is against other blocks, not the wall:
These work even on ''Tetris Worlds'' because the T's back is against other blocks, not the wall:
{|
{|
|{{pfstart}}
|<playfield>
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfend}}
</playfield>
|{{pfstart}}
|<playfield>
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G| |L|L}}
GGGGGGG LL
{{pfrow|G|G|G|G|G|G|G|G|G|L}}
GGGGGGGGGL
{{pfrow|G|G|G|G|G|G|G|G|G|L}}
GGGGGGGGGL
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfend}}
</playfield>
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | | | | | }}
         
{{pfrow| | | | | | | | | | }}
         
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G| |L|L}}
GGGGGGG LL
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfend}}
</playfield>
|}
|}


{|
|<playfield>
GGGGGGG 
GGGGGGG 
GGGGGGG 
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
</playfield>
|<playfield>
GGGGGGG 
GGGGGGG SS
GGGGGGGSS
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
</playfield>
|<playfield>
GGGGGGG 
GGGGGGG SS
GGGGGGGSS
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
</playfield>
|}
{|
{|
|{{pfstart}}
|<playfield>
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfend}}
</playfield>
|{{pfstart}}
|<playfield>
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G|J|J|J}}
GGGGGGGJJJ
{{pfrow|G|G|G|G|G|G|G|Z|Z|J}}
GGGGGGGZZJ
{{pfrow|G|G|G|G|G|G|G| |Z|Z}}
GGGGGGG ZZ
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfend}}
</playfield>
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | | | | | }}
         
{{pfrow| | | | | | | | | | }}
         
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G| |Z|Z}}
GGGGGGG ZZ
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfend}}
</playfield>
|}
|}


Line 204: Line 237:
T-Spin Doubles, when combined with tetrises, produce one of the most deadly combinations in multiplayer.  
T-Spin Doubles, when combined with tetrises, produce one of the most deadly combinations in multiplayer.  
{|
{|
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | | | | | }}
         
{{pfrow| | | | | | | | | | }}
         
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G|G| |G}}
GGGGGGGG G
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfend}}
</playfield>
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | |S| | | }}
      S  
{{pfrow| | | | | | |S|S| | }}
      SS 
{{pfrow|G|G|G|G|G|G|G|S| | }}
GGGGGGGS 
{{pfrow|G|G|G|G|G|G|G| | | }}
GGGGGGG 
{{pfrow|G|G|G|G|G|G|G|G| |G}}
GGGGGGGG G
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfend}}
</playfield>
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | |S| | | }}
      S  
{{pfrow| | | | | | |S|S| | }}
      SS 
{{pfrow|G|G|G|G|G|G|G|S| | }}
GGGGGGGS 
{{pfrow|G|G|G|G|G|G|G|T|T|T}}
GGGGGGGTTT
{{pfrow|G|G|G|G|G|G|G|G|T|G}}
GGGGGGGGTG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfend}}
</playfield>
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | | | | | }}
         
{{pfrow| | | | | | | | | | }}
         
{{pfrow| | | | | | |S| | | }}
      S  
{{pfrow| | | | | | |S|S| | }}
      SS 
{{pfrow|G|G|G|G|G|G|G|S| | }}
GGGGGGGS 
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfrow|G|G|G|G|G|G|G|G|G| }}
GGGGGGGGG
{{pfend}}
</playfield>
|}
|}


{|
{|
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | | | | | }}
         
{{pfrow| | | | | | | | | | }}
         
{{pfrow| | | | | | | | | | }}
         
{{pfrow| | | | | | | | | | }}
         
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfend}}
</playfield>
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | | | | | }}
         
{{pfrow| | | | | | | | | | }}
         
{{pfrow|J| | | | |Z|Z| |O|O}}
J   ZZ OO
{{pfrow|J|J|J| | | |Z|Z|O|O}}
JJJ  ZZOO
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfend}}
</playfield>
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | |Z| | | }}
      Z  
{{pfrow| | | | | |Z|Z| | |J}}
    ZZ  J
{{pfrow| | |L| | |Z|O|O| |J}}
  L ZOO J
{{pfrow|L|L|L| | | |O|O|J|J}}
LLL  OOJJ
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfend}}
</playfield>
|{{pfstart}}
|<playfield>
{{pfrow| | | | | | | | | | }}
         
{{pfrow| | | |L| | | | | | }}
  L    
{{pfrow|J|L|L|L| | | | | | }}
JLLL     
{{pfrow|J|J|J| | | |I|I|I|I}}
JJJ  IIII
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfrow|G|G|G|G| |G|G|G|G|G}}
GGGG GGGGG
{{pfend}}
</playfield>
|}
|}


The article [[ST stacking]] describes a stacking method that uses several consecutive T-spin doubles. Though designed for single player, it can also prove useful as an opening in multiplayer.
The article [[ST stacking]] describes a stacking method that uses several consecutive T-spin doubles. Though designed for single player, it can also prove useful as an opening in multiplayer.
[[Category:Gameplay]]

Latest revision as of 10:18, 9 September 2019

Tetris

BtB tetris is probably the most widely used tactic of them all. A player simply builds up for one tetris. After clearing with an I, a player stacks on top of the foundation for a second tetris.

T-Spin Single

T-spin singles are the easiest to spot and to exploit in multiplayer. Not utilizing them will only put you at a disadvantage against an opponent who does. In Tetris Worlds, T-spin singles with the T tetromino's flat side against the wall don't send garbage, but in Tetris DS, they do.

 -
---
 GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
T
TT
TGGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
T
TT
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
T
TT
GGGGGGGGGI
GGGGGGGGGI
GGGGGGGGGI
GGGGGGGGGI
      G -
    GGG---
GGGGGGGGG
GGGGGGG GG
GGGGGGG GG
GGGGGGG GG
GGGGGGG GG

Place T

      G  T
    GGG TT
GGGGGGGGGT
GGGGGGG GG
GGGGGGG GG
GGGGGGG GG
GGGGGGG GG

Soft drop and
rotate left

      G  T
    GGG TT
GGGGGGG GG
GGGGGGG GG
GGGGGGG GG
GGGGGGG GG

T-spin single

      G  T
    GGG TT
GGGGGGGIGG
GGGGGGGIGG
GGGGGGGIGG
GGGGGGGIGG

Drop I for
back-to-back tetris

If a situation is not readily available, create one if you don't already have a BtB chain going.

      G
  G   G
GGGGGGG
GGGGGGG  G
GGGGGGG GG
GGGGGGG GG
GGGGGGG GG
GGGGGGG GG
      G
  G   G
GGGGGGGOO
GGGGGGGOOG
GGGGGGG GG
GGGGGGG GG
GGGGGGG GG
GGGGGGG GG
      G
  G   G
GGGGGGGOO
GGGGGGG GG
GGGGGGG GG
GGGGGGG GG
GGGGGGG GG

These work even on Tetris Worlds because the T's back is against other blocks, not the wall:

GGGGGGG
GGGGGGG
GGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGG
GGGGGGG
GGGGGGG LL
GGGGGGGGGL
GGGGGGGGGL
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGG
GGGGGGG
GGGGGGG LL
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG


GGGGGGG
GGGGGGG
GGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGG
GGGGGGG SS
GGGGGGGSS
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGG
GGGGGGG SS
GGGGGGGSS
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGG
GGGGGGG
GGGGGGG
GGGGGGG
GGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGG
GGGGGGG
GGGGGGGJJJ
GGGGGGGZZJ
GGGGGGG ZZ
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGG
GGGGGGG
GGGGGGG ZZ
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG

T-Spin Double

T-Spin Doubles, when combined with tetrises, produce one of the most deadly combinations in multiplayer.

GGGGGGG
GGGGGGG
GGGGGGGG G
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
      S
      SS
GGGGGGGS
GGGGGGG
GGGGGGGG G
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
      S
      SS
GGGGGGGS
GGGGGGGTTT
GGGGGGGGTG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
      S
      SS
GGGGGGGS
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGGGGGGG
GGGG GGGGG
GGGG GGGGG
GGGG GGGGG
GGGG GGGGG
GGGG GGGGG
GGGG GGGGG
J    ZZ OO
JJJ   ZZOO
GGGG GGGGG
GGGG GGGGG
GGGG GGGGG
GGGG GGGGG
GGGG GGGGG
GGGG GGGGG
      Z
     ZZ  J
  L  ZOO J
LLL   OOJJ
GGGG GGGGG
GGGG GGGGG
GGGG GGGGG
GGGG GGGGG
GGGG GGGGG
GGGG GGGGG
   L
JLLL
JJJ   IIII
GGGG GGGGG
GGGG GGGGG
GGGG GGGGG
GGGG GGGGG
GGGG GGGGG
GGGG GGGGG

The article ST stacking describes a stacking method that uses several consecutive T-spin doubles. Though designed for single player, it can also prove useful as an opening in multiplayer.