Difference between revisions of "Glossary"

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(Remember this glossary relates to Tetris in general, not just to guideline games)
 
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nodarbolar
 
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The following are brief definitions of terms related to ''Tetris'' and similar games.
 
The following are brief definitions of terms related to ''Tetris'' and similar games.
 +
{{outdated}}
 
== Diagram Legend ==
 
== Diagram Legend ==
 
The following is a legend detailing the functions of the various blocks used in the diagrams throughout the wiki articles.
 
The following is a legend detailing the functions of the various blocks used in the diagrams throughout the wiki articles.
Line 37: Line 35:
 
|}
 
|}
  
== 2 ==
+
== # ==
 
; 20G
 
; 20G
 
: See [[#G|G]].
 
: See [[#G|G]].
Line 44: Line 42:
 
;Active piece
 
;Active piece
 
:Alternate term for falling piece.
 
:Alternate term for falling piece.
 +
 +
;All Clear
 +
:Another term for a [[perfect clear]], seen in some older games such as [[Magical Tetris Challenge]].
  
 
;ARE
 
;ARE
Line 49: Line 50:
  
 
;[[TGM rotation|Arika Rotation System]] (ARS)
 
;[[TGM rotation|Arika Rotation System]] (ARS)
:The rotation system used by most games published by Arika.
+
:The rotation system used by most games published by [[Arika]].
  
 
== B ==
 
== B ==
 +
;Back-to-back
 +
:The act of performing two difficult line clears (Tetrises or spins) in a row, performed without a 1, 2, or 3-Line Clear occurring between them.
 +
 
;Bag
 
;Bag
 
:A class of [[#R|randomizer]] in which a collection of pieces is shuffled, and all are dealt into the preview. (See [[Random Generator]].)
 
:A class of [[#R|randomizer]] in which a collection of pieces is shuffled, and all are dealt into the preview. (See [[Random Generator]].)
 +
 +
;Base (T-Spin)
 +
:The portion of a T-Spin setup, not directly under an overhang, where the T rests upon.
  
 
;Block
 
;Block
:A solid element occupying one cell of the playfield. Also used as a synonym for "cell" to represent a length or width (e.g. a 2-block-tall hole). Multiple blocks make a [[piece]] such as a [[tetromino]]. In some publications, a "block" may refer to a whole piece, but Tetriswiki uses "piece" or "tetromino" for clarity.
+
:A solid element occupying one cell of the playfield. Also used as a synonym for "cell" to represent a length or width (e.g. a 2-block-tall hole). Multiple blocks make a [[piece]] such as a [[tetromino]]. In some publications, a "block" may refer to a whole piece, but Tetris.wiki uses "piece" or "tetromino" for clarity.
  
 
;Block Out
 
;Block Out
:To [[top out]] when a block overlaps the entry position. [http://zone.tetris.com/page/manual]
+
:To [[top out]] when part of a newly-generated piece is blocked due to an existing block in the field.
  
 
;Bounding box
 
;Bounding box
 
:A conceptual mechanism for explaining rotation systems that allows depicting how orientations are positioned relative to one another.
 
:A conceptual mechanism for explaining rotation systems that allows depicting how orientations are positioned relative to one another.
 +
 +
;Bravo
 +
:Another term for a [[perfect clear]], associated with the TGM series (which would display the message "Bravo!" when a perfect clear was achieved), but also seen in other games such as [[Tetris (PlayStation Portable)]].
 +
 +
;Buffer Zone
 +
An invisible area above the playfield used to detect Lock Out, Block Out, and Top Out Game Over Conditions. Both the buffer zone and playfield share the same dimensions.
  
 
== C ==
 
== C ==
Line 71: Line 84:
 
:A unit square within the [[playfield]].
 
:A unit square within the [[playfield]].
  
;Combo
+
;[[Combo]]
 
:Placement of multiple consecutive pieces to clear lines.
 
:Placement of multiple consecutive pieces to clear lines.
  
Line 84: Line 97:
  
 
;[[ARE|Entry delay]]
 
;[[ARE|Entry delay]]
:Time between when one piece finishes and when the following piece enters.
+
:Time between when one piece finishes and when the following piece enters. Also known as ARE or appearance delay.
  
 
== F ==
 
== F ==
Line 110: Line 123:
  
 
;[[Ghost piece]]
 
;[[Ghost piece]]
:A marker in the playfield showing where the falling piece will land.
+
:A marker in the playfield showing where the falling piece will land. Known in ''TGM'' as '''Temporary Landing System (TLS)'''.
 +
 
 +
;Goal
 +
:The condition that must be met before a Level Up (or game completed) takes place, and is typically a number of lines left to be cleared. The Goal depends on the goal system used. For the Fixed Goal System used in many games, 10 lines must be cleared on each level.
  
 
;[[Drop#Gravity|Gravity]]
 
;[[Drop#Gravity|Gravity]]
:The automatic downward movement of a piece over time.
+
#The automatic downward movement of a piece over time.
 +
#Short for [[Line clear#Line_clear_gravity|line clear gravity]].
 +
#Another term for [[Line_clear#Cascade|cascade gravity]].
  
 
;[[Tetris Guideline|Guideline]]
 
;[[Tetris Guideline|Guideline]]
Line 120: Line 138:
 
== H ==
 
== H ==
 
;Hard drop
 
;Hard drop
:Moving the piece straight down as far as possible and locking it immediately.
+
:Moving the piece straight down as far as possible and locking it immediately. It does not allow for further player manipulation of the piece.
  
 
;[[Hold piece|Hold]]
 
;[[Hold piece|Hold]]
 
:Placing the falling piece in storage and moving the piece that was in storage (or next in line if no piece was in storage) to the top of the playfield.
 
:Placing the falling piece in storage and moving the piece that was in storage (or next in line if no piece was in storage) to the top of the playfield.
 +
 +
;Hole
 +
:An empty cell in a stack that needs line clears above it to be corrected.
  
 
== I ==
 
== I ==
Line 134: Line 155:
  
 
;[[Infinity]]
 
;[[Infinity]]
:A rule in which lock delay resets every time a piece is shifted or rotated.
+
:Move reset with unlimited resets. In the past this was also used to refer to move reset in general, but with a limited number of resets now being standard this usage is obsolete.
 +
 
 +
== J ==
 +
;Jiznickery [http://gilly.homeip.net/tetris/glossary]
 +
:A misdrop due to an inadvertent zangi-move. It happens in games with firm drop when the player drops a piece but does not wait long enough for the piece to lock before trying to charge DAS or input IRS for the next piece. ''[[The New Tetris]]'' was especially susceptible due to its lack of manual locking.
  
 
== L ==
 
== L ==
 +
;Level Up
 +
:Upon completion of a level’s goal, the player proceeds to the next level.
 +
 +
;Line
 +
;The result when blocks fill a horizontal line of cells.
 +
 +
;Line attack
 +
:An act of sending garbage lines to other players.
 +
 
;[[Line clear]]
 
;[[Line clear]]
 
:Creation of a complete row of blocks with no holes after a piece locks. It disappears, and the blocks above the row move down.
 
:Creation of a complete row of blocks with no holes after a piece locks. It disappears, and the blocks above the row move down.
Line 165: Line 199:
  
 
;Move reset
 
;Move reset
:Another name for Infinity.
+
:A rule in which lock delay resets every time a piece is shifted or rotated.
  
 
== N ==
 
== N ==
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;[[Orientation]]
 
;[[Orientation]]
 
:The direction that a piece faces. The number of orientations in Tetris pieces may not always be equal to the number of geometric orientations a shape can take. Shapes like Z, S, and I which only has two orientations, or O, which has only one, can be treated as having four internal representations in some games, most commonly those that implement the [[SRS|Super Rotation System]].
 
:The direction that a piece faces. The number of orientations in Tetris pieces may not always be equal to the number of geometric orientations a shape can take. Shapes like Z, S, and I which only has two orientations, or O, which has only one, can be treated as having four internal representations in some games, most commonly those that implement the [[SRS|Super Rotation System]].
 +
 +
;Overhang
 +
:A block or column of blocks extending from a wall of blocks over an empty cell or column. Overhangs are commonly used as a method of reordering piece placements when a player receives undesirable tetromino sequences. In games where [[T-Spin|T-Spins]] are rewarded, overhangs may be used to set up a T-Spin.
  
 
== P ==
 
== P ==
 +
;[[Perfect clear]]
 +
:When the player clears the whole playfield without leaving any blocks behind. Also known as an all clear or bravo.
 +
 
;[[Piece]]
 
;[[Piece]]
 
:A set of blocks that moves as a unit.
 
:A set of blocks that moves as a unit.
Line 183: Line 223:
  
 
;[[Playfield]]
 
;[[Playfield]]
:A (usually square) grid into which pieces are placed.
+
:A grid of cells into which pieces are placed.
  
 
== R ==
 
== R ==
 
;[[Random Generator]]
 
;[[Random Generator]]
:A specific randomizer used in newer games that guarantees an even distribution of piece types. It consists of a [[#B|bag]] with one of each of the seven tetrominoes.
+
:A specific randomizer used in guideline games that guarantees an even distribution of piece types. It consists of a [[#B|bag]] with one of each of the seven tetrominoes.
  
 
;Randomizer
 
;Randomizer
 
:An algorithm that generates a sequence of piece types.
 
:An algorithm that generates a sequence of piece types.
 +
 +
;Receiving Queue
 +
:A vertical meter (usually seen in guideline games) that accrues opponents’ line attacks between locked pieces. When a piece locks, any lines accrued in the meter are added to the bottom of that player’s field before generation of the next piece.
  
 
;Rectum
 
;Rectum
:At least four adjacent rows that are filled with blocks except for a single hole in the same column.[http://www.arkmay.com/tetris/moves.html]
+
:See "well", definition 2. [http://www.arkmay.com/tetris/moves.html]
  
 
;[[Rotate]]
 
;[[Rotate]]
:To change a piece's orientation by turning it clockwise or counterclockwise, generally by 90 degrees.
+
:To change a piece's orientation. Rotation generally occurs at 90 degree intervals, and may be performed in either the clockwise or counterclockwise directions.
  
 
;Rotating the tires
 
;Rotating the tires
Line 215: Line 258:
  
 
;Soft drop
 
;Soft drop
:Moving the piece down faster than [[#G|gravity]], while still retaining control over it.
+
:Moving the piece down faster than [[#G|gravity]] from its current location, while still retaining control over it.
  
 
;Sonic drop
 
;Sonic drop
Line 227: Line 270:
  
 
;[[SRS|Super Rotation System]] (SRS)
 
;[[SRS|Super Rotation System]] (SRS)
:A rotation system for tetrominoes used by games that adhere to the [[Tetris Guideline]].
+
:A rotation system devised to enable the rotation of a Tetromino regardless of where it is in the field, used by games that adhere to the [[Tetris Guideline]].
  
 
;Step reset
 
;Step reset
Line 233: Line 276:
  
 
== T ==
 
== T ==
;Tetrad
 
:Alternate term for tetromino used especially in older games.
 
 
 
;Temporary Landing System (TLS)
 
;Temporary Landing System (TLS)
 
:Arika's name for the [[#G|ghost]] piece.
 
:Arika's name for the [[#G|ghost]] piece.
 +
 +
;Tetlag
 +
:Effect of failure to adapt to different variations of a puzzle game, especially different [[#R|rotation systems]]. (Coined by colour_thief[https://tetrisconcept.net/threads/a-few-questions-about-tgm-tetris.112/#post-7199] as a portmanteau of "tetromino" and "jet lag".)
 +
 +
;Tetrad
 +
:Alternate term for tetromino used in ''Nintendo Power'' reviews of 8-bit ''Tetris'' games.
  
 
;Tetramino
 
;Tetramino
:Alternate term for tetromino used by The Tetris Company in ''The New Tetris''.
+
:Alternate term for tetromino allegedly used by The Tetris Company in the late 1990s.
 
 
;Tetlag
 
:Effect of failure to adapt to different variations of a puzzle game, especially different [[#R|rotation systems]]. (Coined by colour_thief[http://www.tetrisconcept.com/forum/viewtopic.php?p=2175#2175] as a portmanteau of "tetromino" and "jet lag".)
 
  
 
;Tetrimino
 
;Tetrimino
Line 249: Line 292:
  
 
;Tetrion
 
;Tetrion
:A term used by The Tetris Company for the game object that contains a [[#P|playfield]]. Different tetrions may implement different variations of the game rules. (Not to be confused with [http://memory-alpha.org/en/wiki/Tetryon treknobabble].)
+
:A term used by The Tetris Company for the game object that contains a [[#P|playfield]]. Different tetrions may implement different variations of the game rules.
  
 
;[[Tetris Stacking|Tetris]]
 
;[[Tetris Stacking|Tetris]]
Line 257: Line 300:
  
 
;[[Tetromino]]
 
;[[Tetromino]]
:A [[#P|piece]] consisting of four square blocks joined at the sides.
+
:A [[#P|piece]] consisting of four square blocks joined at the sides. Precise language uses the letter names, but some players use the color names.
 +
[[Image:TGM_Legend_Tetra_SRS.png|left|464px|thumb|Initial orientations and colors of the pieces in SRS.]]
 +
[[Image:TGM Legend tetriminos.png|left|464px|thumb|Initial orientations and colors of the pieces in ARS.]]<br clear="all">
  
 
;[[Top out]]
 
;[[Top out]]
:A piece reaches the top of the playfield and the game ends.
+
:An endgame condition occurring when:
 +
:''Singleplayer:'' A piece reaches the top of the playfield.
 +
:''Multiplayer:'' A player receives garbage lines that force the player’s existing blocks to the top of the buffer zone and past the top out line.
  
;T-spin
+
;Top Out Line
:A twist performed with the T tetromino that satisfies specific requirements.
+
:The ceiling of the buffer zone, above the ceiling with the same height as the normal field.
 +
 
 +
;[[T-spin]]
 +
:A twist achieved by first landing a T-piece, and before it locks, rotating it in a T-shaped slot.
  
 
;[[Twist]]
 
;[[Twist]]
 
:Placing a piece under an overhang by rotating it.
 
:Placing a piece under an overhang by rotating it.
 +
 +
== V ==
 +
;Vanish zone
 +
:The out-of-bounds region above the playfield ceiling.
  
 
== W ==
 
== W ==
Line 273: Line 327:
  
 
;Well
 
;Well
:A term used in some older games for the playfield.
+
#A term used in some older games for the playfield.
 +
#(also Tetris well) A term used to refer to a single-column hole in at least four adjacent rows.
  
 
== Z ==
 
== Z ==
Line 284: Line 339:
  
 
== External links ==
 
== External links ==
[http://zone.tetris.com/page/manual Tetris Zone glossary]
+
*[https://web.archive.org/web/20140701182459/http://zone.tetris.com/page/manual Tetris Zone glossary]
 +
*[https://www.tetrisfriends.com/help/tips_appendix.php#tetristerminology Tetris Friends glossary]
  
[[Category:Game Mechanics]]
+
[[Category:Terminology]]

Latest revision as of 06:31, 22 November 2019

The following are brief definitions of terms related to Tetris and similar games.

Outdated content
This page is outdated, but if it were updated, it might still be useful. Please help by correcting, augmenting and revising the text into an up-to-date form.

Diagram Legend

The following is a legend detailing the functions of the various blocks used in the diagrams throughout the wiki articles.

Img Description
Tet.png Empty playfield cell
ZTet.png Red block (commonly part of Z tetromino)
LTet.png Orange block (commonly part of L tetromino)
OTet.png Yellow block (commonly part of O tetromino)
STet.png Green block (commonly part of S tetromino)
ITet.png Cyan block (commonly part of I tetromino)
JTet.png Blue block (commonly part of J tetromino)
TTet.png Purple block (commonly part of T tetromino)
GTet.png Gray block (Garbage or Playfield wall)
-Tet.png Ghost piece or Line clear
CTet.png Rotation center of a piece, a bomb in Bombliss, or any other specially marked block
PTet.png Purple block for the T Tetromino when executing a T-Spin
BTet.png Cell that has to be occupied for something (like a wallkick) to happen
XTet.png Cell that cannot be occupied for something (like a wallkick) to happen

#

20G
See G.

A

Active piece
Alternate term for falling piece.
All Clear
Another term for a perfect clear, seen in some older games such as Magical Tetris Challenge.
ARE
A term for entry delay originating from Japan.
Arika Rotation System (ARS)
The rotation system used by most games published by Arika.

B

Back-to-back
The act of performing two difficult line clears (Tetrises or spins) in a row, performed without a 1, 2, or 3-Line Clear occurring between them.
Bag
A class of randomizer in which a collection of pieces is shuffled, and all are dealt into the preview. (See Random Generator.)
Base (T-Spin)
The portion of a T-Spin setup, not directly under an overhang, where the T rests upon.
Block
A solid element occupying one cell of the playfield. Also used as a synonym for "cell" to represent a length or width (e.g. a 2-block-tall hole). Multiple blocks make a piece such as a tetromino. In some publications, a "block" may refer to a whole piece, but Tetris.wiki uses "piece" or "tetromino" for clarity.
Block Out
To top out when part of a newly-generated piece is blocked due to an existing block in the field.
Bounding box
A conceptual mechanism for explaining rotation systems that allows depicting how orientations are positioned relative to one another.
Bravo
Another term for a perfect clear, associated with the TGM series (which would display the message "Bravo!" when a perfect clear was achieved), but also seen in other games such as Tetris (PlayStation Portable).
Buffer Zone

An invisible area above the playfield used to detect Lock Out, Block Out, and Top Out Game Over Conditions. Both the buffer zone and playfield share the same dimensions.

C

Ceiling
The horizontal line separating the in-bounds rows of the playfield from the out-of-bounds rows. Most games place the ceiling at the top of row 20. In most games, the ceiling coincides with the top of the visible portion of the playfield.
Cell
A unit square within the playfield.
Combo
Placement of multiple consecutive pieces to clear lines.

D

DAS
Delayed Auto Shift. Refers to the autorepeat of sideways movement.
Drop
Downward movement of a piece.

E

Entry delay
Time between when one piece finishes and when the following piece enters. Also known as ARE or appearance delay.

F

Falling piece
The tetromino or other piece under the player's control.
Fast drop
Another name for soft drop.
Firm drop
Moving the piece straight down as far as possible and starting the lock delay.
Floor kick
Upward movement of a piece when it rotates against the floor of the playfield or other blocks.
Frame
Period during which the sequence of rotation, movement, and gravity is executed, and the result is displayed. Video games in Japan and North America run at 60 frames per second.

G

G
A unit of speed of one cell per frame. Refers most often to gravity; can also refer to DAS or soft drop speed. For example, when gravity is 20G, each piece falls so quickly that it instantly spawns on top of the playfield.
Garbage
Rows of blocks added to the bottom of the playfield at the start of the game or during the game.
Ghost piece
A marker in the playfield showing where the falling piece will land. Known in TGM as Temporary Landing System (TLS).
Goal
The condition that must be met before a Level Up (or game completed) takes place, and is typically a number of lines left to be cleared. The Goal depends on the goal system used. For the Fixed Goal System used in many games, 10 lines must be cleared on each level.
Gravity
  1. The automatic downward movement of a piece over time.
  2. Short for line clear gravity.
  3. Another term for cascade gravity.
Guideline
The specification for how Tetris games made in roughly 2001 and later should operate.

H

Hard drop
Moving the piece straight down as far as possible and locking it immediately. It does not allow for further player manipulation of the piece.
Hold
Placing the falling piece in storage and moving the piece that was in storage (or next in line if no piece was in storage) to the top of the playfield.
Hole
An empty cell in a stack that needs line clears above it to be corrected.

I

Initial Hold System (IHS)
A rule allowing the player to hold the next piece during entry delay.
Initial Rotation System (IRS)
A rule allowing the player to rotate a piece as it enters the playfield by pressing and holding a button during entry delay.
Infinity
Move reset with unlimited resets. In the past this was also used to refer to move reset in general, but with a limited number of resets now being standard this usage is obsolete.

J

Jiznickery [1]
A misdrop due to an inadvertent zangi-move. It happens in games with firm drop when the player drops a piece but does not wait long enough for the piece to lock before trying to charge DAS or input IRS for the next piece. The New Tetris was especially susceptible due to its lack of manual locking.

L

Level Up
Upon completion of a level’s goal, the player proceeds to the next level.
Line
The result when blocks fill a horizontal line of cells.
Line attack
An act of sending garbage lines to other players.
Line clear
Creation of a complete row of blocks with no holes after a piece locks. It disappears, and the blocks above the row move down.
Lock
After a piece has landed on the floor of the playfield or on other blocks, it becomes part of the playfield and is no longer subject to the player's control. Or to cancel lock delay, causing a piece to lock immediately.
Lock delay
The time between when a piece lands and when it locks.
Lockdown
See Lock.
Lock Out
To top out by locking a piece above the ceiling. [2]

M

Matrix
A term used by The Tetris Company for a playfield.
Mino
  1. A term used by The Tetris Company for a block;[3] this sense is little used outside TTC.
  2. The "block creatures" in the games Tetris Worlds and Kids Tetris are also called Minos.
  3. In Japanese Sega Tetris/TGM parlance, the term is used as an abbreviation of "Tetramino", thus referring to the whole piece instead of a single cell. The term "block", however, is used more often.
Misdrop
A misdrop is when a player accidentally drops a tetromino in the wrong place, or in the wrong orientation.
Move reset
A rule in which lock delay resets every time a piece is shifted or rotated.

N

Next piece
Alternate term for piece preview.

O

Orientation
The direction that a piece faces. The number of orientations in Tetris pieces may not always be equal to the number of geometric orientations a shape can take. Shapes like Z, S, and I which only has two orientations, or O, which has only one, can be treated as having four internal representations in some games, most commonly those that implement the Super Rotation System.
Overhang
A block or column of blocks extending from a wall of blocks over an empty cell or column. Overhangs are commonly used as a method of reordering piece placements when a player receives undesirable tetromino sequences. In games where T-Spins are rewarded, overhangs may be used to set up a T-Spin.

P

Perfect clear
When the player clears the whole playfield without leaving any blocks behind. Also known as an all clear or bravo.
Piece
A set of blocks that moves as a unit.
Piece preview
A display area of the tetrion devoted to displaying the next pieces that will enter the playfield.
Playfield
A grid of cells into which pieces are placed.

R

Random Generator
A specific randomizer used in guideline games that guarantees an even distribution of piece types. It consists of a bag with one of each of the seven tetrominoes.
Randomizer
An algorithm that generates a sequence of piece types.
Receiving Queue
A vertical meter (usually seen in guideline games) that accrues opponents’ line attacks between locked pieces. When a piece locks, any lines accrued in the meter are added to the bottom of that player’s field before generation of the next piece.
Rectum
See "well", definition 2. [4]
Rotate
To change a piece's orientation. Rotation generally occurs at 90 degree intervals, and may be performed in either the clockwise or counterclockwise directions.
Rotating the tires
Alternate term for a twist.[5]
Rotation system
A rule specifying the orientation for each piece type and the movements (including wall kicks and floor kicks) when changing orientations.

S

Shadow
Alternate term for ghost piece.
Shift
Moving a piece sideways.
Slide
Placing a piece under an overhang by moving it sideways.
Soft drop
Moving the piece down faster than gravity from its current location, while still retaining control over it.
Sonic drop
A name for firm drop arising from the TGM community.
Sonic lock
A name for hard drop arising from the TGM community.
Speed
See Drop or Tetromino Per Time.
Super Rotation System (SRS)
A rotation system devised to enable the rotation of a Tetromino regardless of where it is in the field, used by games that adhere to the Tetris Guideline.
Step reset
Lock delay resets every time the falling piece moves downward.

T

Temporary Landing System (TLS)
Arika's name for the ghost piece.
Tetlag
Effect of failure to adapt to different variations of a puzzle game, especially different rotation systems. (Coined by colour_thief[6] as a portmanteau of "tetromino" and "jet lag".)
Tetrad
Alternate term for tetromino used in Nintendo Power reviews of 8-bit Tetris games.
Tetramino
Alternate term for tetromino allegedly used by The Tetris Company in the late 1990s.
Tetrimino
Alternate term for tetromino used by The Tetris Company as of Tetris Worlds.
Tetrion
A term used by The Tetris Company for the game object that contains a playfield. Different tetrions may implement different variations of the game rules.
Tetris
  1. The Tetris Company's trademark for products implementing the Soviet Mind Game.
  2. The act of clearing four lines with one tetromino.
Tetromino
A piece consisting of four square blocks joined at the sides. Precise language uses the letter names, but some players use the color names.
Initial orientations and colors of the pieces in SRS.
Initial orientations and colors of the pieces in ARS.


Top out
An endgame condition occurring when:
Singleplayer: A piece reaches the top of the playfield.
Multiplayer: A player receives garbage lines that force the player’s existing blocks to the top of the buffer zone and past the top out line.
Top Out Line
The ceiling of the buffer zone, above the ceiling with the same height as the normal field.
T-spin
A twist achieved by first landing a T-piece, and before it locks, rotating it in a T-shaped slot.
Twist
Placing a piece under an overhang by rotating it.

V

Vanish zone
The out-of-bounds region above the playfield ceiling.

W

Wall kick
Sideways movement of a piece when it rotates against the floor of the playfield or other blocks.
Well
  1. A term used in some older games for the playfield.
  2. (also Tetris well) A term used to refer to a single-column hole in at least four adjacent rows.

Z

Zangi-move
Moving a piece downward, sliding it, and locking it.

See also

External links