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| {{merge|Tetromino}}
| | #REDIRECT [[Tetromino#Orientation]] |
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| A [[tetromino|tetromino's]] orientation, with regards to ''Tetris'' refers to the different ways that tetromino can exist after [[rotate|rotations]].
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| Normally all the tetrominoes have a total of nineteen orientations, but probably to make things more symmetric, [[Tetris Guideline|newer games]] add six orientations: two for ''S'', ''Z'', and ''I''.
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| Orientations can be described either by the way they point (especially for T, which at least one reviewer has compared to a finger gesture[http://www.arkmay.com/tetris/pieces.html]) or by the way the longest flat side faces.
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| {|
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| ! Point up<br>Flat down
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| ! Point right<br>Flat left
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| ! Point down<br>Flat up
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| ! Point left<br>Flat right
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| |- valign="top"
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| |<playfield>
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| ..........
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| ....OO....
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| ....OO....
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| ..........
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| </playfield>
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| |<playfield>
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| ..........
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| ....OO....
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| ....OO....
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| ..........
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| </playfield>
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| |<playfield>
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| ..........
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| ....OO....
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| ....OO....
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| ..........
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| </playfield>
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| |<playfield>
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| ..........
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| ....OO....
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| ....OO....
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| ..........
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| </playfield>
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| |}
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| {|
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| |- valign="top"
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| |<playfield>
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| ..........
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| ...IIII...
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| ..........
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| ..........
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| </playfield>
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| |<playfield>
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| .....I....
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| .....I....
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| .....I....
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| .....I....
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| </playfield>
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| |<playfield>
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| ..........
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| ..........
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| ...IIII...
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| ..........
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| </playfield>
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| |<playfield>
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| ....I.....
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| ....I.....
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| ....I.....
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| ....I.....
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| </playfield>
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| |}
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| {|
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| |- valign="top"
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| |<playfield>
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| ....T.....
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| ...TTT....
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| ..........
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| ..........
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| </playfield>
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| |<playfield>
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| ....T.....
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| ....TT....
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| ....T.....
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| ..........
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| </playfield>
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| |<playfield>
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| ..........
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| ...TTT....
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| ....T.....
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| ..........
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| </playfield>
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| |<playfield>
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| ....T.....
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| ...TT.....
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| ....T.....
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| ..........
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| </playfield>
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| |}
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| {|
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| |- valign="top"
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| |<playfield>
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| ....SS....
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| ...SS.....
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| ..........
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| ..........
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| </playfield>
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| |<playfield>
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| ....S.....
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| ....SS....
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| .....S....
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| ..........
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| </playfield>
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| |<playfield>
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| ..........
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| ....SS....
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| ...SS.....
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| ..........
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| </playfield>
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| |<playfield>
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| ...S......
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| ...SS.....
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| ....S.....
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| ..........
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| </playfield>
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| |}
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| {|
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| |- valign="top"
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| |<playfield>
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| ...ZZ.....
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| ....ZZ....
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| ..........
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| ..........
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| </playfield>
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| |<playfield>
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| .....Z....
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| ....ZZ....
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| ....Z.....
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| ..........
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| </playfield>
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| |<playfield>
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| ..........
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| ...ZZ.....
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| ....ZZ....
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| ..........
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| </playfield>
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| |<playfield>
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| ....Z.....
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| ...ZZ.....
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| ...Z......
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| ..........
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| </playfield>
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| |}
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| {|
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| |- valign="top"
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| |<playfield>
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| ...J......
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| ...JJJ....
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| ..........
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| ..........
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| </playfield>
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| |<playfield>
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| ....JJ....
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| ....J.....
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| ....J.....
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| ..........
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| </playfield>
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| |<playfield>
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| ..........
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| ...JJJ....
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| .....J....
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| ..........
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| </playfield>
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| |<playfield>
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| ....J.....
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| ....J.....
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| ...JJ.....
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| ..........
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| </playfield>
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| |}
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| {|
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| |- valign="top"
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| |<playfield>
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| .....L....
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| ...LLL....
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| ..........
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| ..........
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| </playfield>
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| |<playfield>
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| ....L.....
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| ....L.....
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| ....LL....
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| ..........
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| </playfield>
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| |<playfield>
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| ..........
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| ...LLL....
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| ...L......
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| ..........
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| </playfield>
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| |<playfield>
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| ...LL.....
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| ....L.....
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| ....L.....
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| ..........
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| </playfield>
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| |}
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