Difference between revisions of "Piece"

From TetrisWiki
Jump to navigation Jump to search
 
(37 intermediate revisions by 13 users not shown)
Line 1: Line 1:
[http://bugzilla.internet2.edu/attachment.cgi?id=732 levitra online] [http://ccfl.unl.edu/twiki/pub/Main/AlexCarneyham/woguked.htm cheap ambien] [http://www.hollins.edu/ubb/Forum32/HTML/000334.html sildenafil online] [http://www.hollins.edu/ubb/Forum32/HTML/000333.html cheap prozac] [http://ist.greenville.edu/drupal/files/rucod.html xanax] [http://www.hollins.edu/ubb/Forum32/HTML/000343.html cheap ortho] [http://ist.greenville.edu/drupal/files/wypy.html funny ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000296.html vicodin online] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/BilyKroft/koky.htm cheap phentermine] [http://bugzilla.internet2.edu/attachment.cgi?id=740 cheap norco] [http://ccfl.unl.edu/twiki/pub/Main/HermanHogg/figog.htm lortab online] [http://ccfl.unl.edu/twiki/pub/Main/AlexCarneyham/kozu.htm cheap hydrocodone] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=24 ativan online] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/AshleighRodriquez/godufit.htm buy paxil] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/SelmaJeremy/sevuv.htm free mono ringtones] [http://bugzilla.internet2.edu/attachment.cgi?id=755 valium] [http://grid.unimelb.edu.au/twiki/pub/Main/JamesMiller/sicofyr.htm tramadol online] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/BettySmith/kuvodoj.htm cheap zoloft] [http://dcc.syr.edu/dforum/message.asp?MessageID=49034 hydrocodone online] [http://dcc.syr.edu/dforum/message.asp?MessageID=49022 viagra online] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/BettySmith/niwupu.htm albuterol] [http://ccfl.unl.edu/twiki/pub/Main/MarthaBell/gedenu.htm cheap rivotril] [http://ccfl.unl.edu/twiki/pub/Main/PaulinePauline/dyzoko.htm verizon ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000314.html lorazepam] [http://grid.unimelb.edu.au/twiki/pub/Main/JackLawson/rejyvob.htm cheap viagra] [http://www.hollins.edu/ubb/Forum32/HTML/000325.html cheap didrex] [http://ccfl.unl.edu/twiki/pub/Main/SummersFrank/kuzypuh.htm order phentermine] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/SelmaJeremy/nofelyr.htm free cingular ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000389.html free ericsson ringtones] [http://dcc.syr.edu/dforum/message.asp?MessageID=49077 sony ericsson ringtones] [http://devel.linux.duke.edu/bugzilla/attachment.cgi?id=267 free motorola ringtones] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/JustinJonson/kuluc.htm zanaflex online] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/JustinJonson/gekiw.htm order flexeril] [http://www.hollins.edu/ubb/Forum32/HTML/000369.html samsung ringtones] [http://devel.linux.duke.edu/bugzilla/attachment.cgi?id=259 nokia ringtones] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=22 diazepam online] [http://www.hollins.edu/ubb/Forum32/HTML/000376.html sonyericsson ringtones] [http://ist.greenville.edu/drupal/files/devowy.html buy lorazepam] [http://ist.greenville.edu/drupal/files/role.html free real ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000351.html cheap rivotril] [http://www.hollins.edu/ubb/Forum32/HTML/000312.html buy ambien] [http://www.hollins.edu/ubb/Forum32/HTML/000337.html albuterol online] [http://dcc.syr.edu/dforum/message.asp?MessageID=49018 cialis online] [http://dcc.syr.edu/dforum/message.asp?MessageID=49035 ambien online] [http://bugzilla.internet2.edu/attachment.cgi?id=746 sagem ringtones] [http://dcc.syr.edu/dforum/message.asp?MessageID=49025 norco online] [http://ist.greenville.edu/drupal/files/puweso.html order meridia] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/RobertSmith/cibedis.htm nexium online] [http://ccfl.unl.edu/twiki/pub/Main/PaulinePauline/zivy.htm mono ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000352.html hgh online] [http://bugzilla.internet2.edu/attachment.cgi?id=754 ultram online] [http://ist.greenville.edu/drupal/files/ruwyze.html cheap ativan] [http://ccfl.unl.edu/twiki/pub/Main/AlexCarneyham/linefej.htm buy wellbutrin] [http://ccfl.unl.edu/twiki/pub/Main/MarthaBell/rofev.htm free free ringtones] [http://ist.greenville.edu/drupal/files/pobiwi.html cheap diazepam] [http://bugzilla.internet2.edu/attachment.cgi?id=751 free sprint ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000345.html buy lortab] [http://grid.unimelb.edu.au/twiki/pub/Main/JamesMiller/bopogo.htm carisoprodol online] [http://dcc.syr.edu/dforum/message.asp?MessageID=49071 free verizon ringtones] [http://ccfl.unl.edu/twiki/pub/Main/HermanHogg/relu.htm clomid online] [http://ccfl.unl.edu/twiki/pub/Main/AlexCarneyham/sifus.htm cheap xenical] [http://bugzilla.internet2.edu/attachment.cgi?id=759 order xanax] [http://www.hollins.edu/ubb/Forum32/HTML/000360.html free free ringtones] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=43 cheap wellbutrin] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=15 buy carisoprodol] [http://cyrusimap.web.cmu.edu/twiki/bin/view/Main/DikVolirev tracfone ringtones] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/SherylDiu/popuxo.htm sharp ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000291.html ativan online] [http://ist.greenville.edu/drupal/files/covubi.html norco online] [http://ccfl.unl.edu/twiki/pub/Main/PaulinePauline/wetule.htm free sony ericsson ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000362.html tracfone ringtones] [http://dcc.syr.edu/dforum/message.asp?MessageID=49075 sonyericsson ringtones] [http://dcc.syr.edu/dforum/message.asp?MessageID=48901 cheap soma] [http://www.hollins.edu/ubb/Forum32/HTML/000293.html cheap meridia] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/JustinJonson/gelol.htm zyban online] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/AshleighRodriquez/rigyse.htm clonazepam online] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/SelmaJeremy/kohe.htm free music ringtones] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/RobertSmith/pybex.htm cyclobenzaprine online] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/AshleighRodriquez/pero.htm ativan online] [http://ccfl.unl.edu/twiki/pub/Main/AlexCarneyham/huvixu.htm paxil online] [http://grid.unimelb.edu.au/twiki/pub/Main/JackLawson/nunuso.htm ativan online] [http://dcc.syr.edu/dforum/message.asp?MessageID=49046 but nexium] [http://ccfl.unl.edu/twiki/pub/Main/MarthaBell/cohufyk.htm mp3 ringtones] [http://ccfl.unl.edu/twiki/pub/Main/MarthaBell/vekorot.htm cheap hgh] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/RobertSmith/kuky.htm propecia online] [http://devel.linux.duke.edu/bugzilla/attachment.cgi?id=268 samsung ringtones] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/BettySmith/kyzefe.htm online ortho] [http://ccfl.unl.edu/twiki/pub/Main/MarthaBell/wydyty.htm cheap zyban] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/SherylDiu/gefu.htm punk ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000340.html order lipitor] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/SherylDiu/ruviti.htm mtv ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000346.html cheap vigrx] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=41 lorazepam online] [http://cyrusimap.web.cmu.edu/twiki/bin/view/Main/RingoFloper fioricet online] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/RobertSmith/tuju.htm cheap lorazepam] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/SherylDiu/sypev.htm cool ringtones] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=30 qwest ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000289.html diazepam online] [http://ccfl.unl.edu/twiki/pub/Main/HermanHogg/kuhufid.htm cheap tenuate] [http://dcc.syr.edu/dforum/message.asp?MessageID=49028 clonazepam online] [http://dcc.syr.edu/dforum/message.asp?MessageID=49015 buy fioricet] [http://bugzilla.internet2.edu/attachment.cgi?id=725 order ativan] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=36 buy clonazepam] [http://ccfl.unl.edu/twiki/pub/Main/HermanHogg/zivesup.htm propecia online] [http://dcc.syr.edu/dforum/message.asp?MessageID=49061 mp3 ringtones] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/RobertSmith/donyki.htm buy hydrocodone] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/BilyKroft/hywi.htm cheap carisoprodol] [http://dcc.syr.edu/dforum/message.asp?MessageID=49051 didrex online] [http://www.hollins.edu/ubb/Forum32/HTML/000300.html levitra online] [http://bugzilla.internet2.edu/attachment.cgi?id=738 nextel ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000356.html zyban online] [http://bugzilla.internet2.edu/attachment.cgi?id=736 mp3 ringtones] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=38 levitra] [http://www.hollins.edu/ubb/Forum32/HTML/000341.html celexa online] [http://grid.unimelb.edu.au/twiki/pub/Main/NoriJohn/rupo.htm tracfone ringtones] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=27 adipex online] [http://dcc.syr.edu/dforum/message.asp?MessageID=49056 free ringtones] [http://ccfl.unl.edu/twiki/pub/Main/PaulinePauline/wypo.htm free music ringtones] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=29 free nextel ringtones] [http://dcc.syr.edu/dforum/message.asp?MessageID=49054 nokia ringtones] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/AshleighRodriquez/putyh.htm cheap levitra] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/PhillipRewers/wozone.htm free ringtones] [http://dcc.syr.edu/dforum/message.asp?MessageID=49049 cheap propecia] [http://www.hollins.edu/ubb/Forum32/HTML/000320.html cheap nexium] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/BilyKroft/piwyh.htm cialis] [http://devel.linux.duke.edu/bugzilla/attachment.cgi?id=250 buy soma] [http://devel.linux.duke.edu/bugzilla/attachment.cgi?id=263 free mp3 ringtones] [http://cyrusimap.web.cmu.edu/twiki/bin/view/Main/BillKukin cheap tramadol] [http://ist.greenville.edu/drupal/files/xuxuw.html phentermine online] [http://dcc.syr.edu/dforum/message.asp?MessageID=49059 funny ringtones] [http://ccfl.unl.edu/twiki/pub/Main/AlexCarneyham/zupu.htm cheap nexium] [http://www.hollins.edu/ubb/Forum32/HTML/000316.html wellbutrin online] [http://ccfl.unl.edu/twiki/pub/Main/SummersFrank/runuz.htm order adipex] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=23 cheap cialis] [http://ist.greenville.edu/drupal/files/rire.html ultram online] [http://ccfl.unl.edu/twiki/pub/Main/PaulinePauline/hulupeg.htm alltel ringtones] [http://grid.unimelb.edu.au/twiki/pub/Main/NoriJohn/nywytew.htm funny ringtones] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/PhillipRewers/cevo.htm free funny ringtones] [http://ccfl.unl.edu/twiki/pub/Main/HermanHogg/nidexyk.htm celexa online] [http://ccfl.unl.edu/twiki/pub/Main/PaulinePauline/pelyvug.htm real ringtones] [http://cyrusimap.web.cmu.edu/twiki/bin/view/Main/LeonPokert free ringtones] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=33 samsung ringtones] [http://bugzilla.internet2.edu/attachment.cgi?id=757 cheap viagra] [http://grid.unimelb.edu.au/twiki/pub/Main/JamesMiller/pusug.htm diazepam online] [http://grid.unimelb.edu.au/twiki/pub/Main/JamesMiller/byvuf.htm cheap ultram] [http://bugzilla.internet2.edu/attachment.cgi?id=758 vicodin online] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=35 alprazolam online] [http://ist.greenville.edu/drupal/files/tego.html propecia online] [http://devel.linux.duke.edu/bugzilla/attachment.cgi?id=257 buy diazepam] [http://www.hollins.edu/ubb/Forum32/HTML/000364.html mp3 ringtones] [http://bugzilla.internet2.edu/attachment.cgi?id=733 meridia online] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/AshleighRodriquez/xyvibi.htm meridia online] [http://www.hollins.edu/ubb/Forum32/HTML/000359.html nokia ringtones] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/AshleighRodriquez/lyxex.htm buy adipex] [http://ist.greenville.edu/drupal/files/huduc.html xenical online] [http://ist.greenville.edu/drupal/files/nezy.html hydrocodone] [http://ccfl.unl.edu/twiki/pub/Main/PaulinePauline/kyxud.htm free cingular ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000375.html sagem ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000286.html buy xanax] [http://www.hollins.edu/ubb/Forum32/HTML/000338.html cheap lisinopril] [http://ccfl.unl.edu/twiki/pub/Main/MarthaBell/wybuk.htm free funny ringtones] [http://dcc.syr.edu/dforum/message.asp?MessageID=48909 valium online] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=51 free tracfone ringtones] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/PhillipRewers/gotu.htm free samsung ringtones] [http://dcc.syr.edu/dforum/message.asp?MessageID=49020 ativan online] [http://www.hollins.edu/ubb/Forum32/HTML/000386.html kyocera ringtones] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=19 xanax] [http://grid.unimelb.edu.au/twiki/pub/Main/NoriJohn/xehepoc.htm free mp3 ringtones] [http://ist.greenville.edu/drupal/files/gogo.html tramadol online] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=32 motorola ringtones] [http://ist.greenville.edu/drupal/files/typutu.html free samsung ringtones] [http://grid.unimelb.edu.au/twiki/pub/Main/JackLawson/fuju.htm adipex online] [http://dcc.syr.edu/dforum/message.asp?MessageID=49040 xenical online] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/JustinJonson/vyxypu.htm pharmacy online online] [http://www.hollins.edu/ubb/Forum32/HTML/000367.html free real ringtones] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/AshleighRodriquez/tirev.htm cheap vicodin] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/BilyKroft/gogy.htm ultram online] [http://ccfl.unl.edu/twiki/pub/Main/HermanHogg/woty.htm cheap didrex] [http://www.coe.unt.edu/chec/forum/forum_posts.asp?TID=16 valium] [http://devel.linux.duke.edu/bugzilla/attachment.cgi?id=258 cialis online] [http://devel.linux.duke.edu/bugzilla/attachment.cgi?id=252 cheap phentermine] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/BettySmith/bogo.htm cheap prozac] [http://bugzilla.internet2.edu/attachment.cgi?id=728 cingular ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000378.html free mono ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000297.html alprazolam online] [http://www.hollins.edu/ubb/Forum32/HTML/000355.html hoodia online] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/BilyKroft/widokyj.htm xanax online] [http://www.hollins.edu/ubb/Forum32/HTML/000373.html polyphonic ringtones] [http://ccfl.unl.edu/twiki/pub/Main/AlexCarneyham/jotu.htm lorazepam online] [http://www.hollins.edu/ubb/Forum32/HTML/000366.html free qwest ringtones] [http://ccfl.unl.edu/twiki/pub/Main/MarthaBell/tytugok.htm buy diethylpropion] [http://ist.greenville.edu/drupal/files/wywe.html cheap didrex] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/AshleighRodriquez/toro.htm cheap norco] [http://ist.greenville.edu/drupal/files/sodere.html viagra online] [http://dcc.syr.edu/dforum/message.asp?MessageID=49042 buy wellbutrin] [http://www.hollins.edu/ubb/Forum32/HTML/000385.html free wwe ringtones] [http://wwwx.cs.unc.edu/~kmp/twiki40/pub/Main/BettySmith/pybido.htm lisinopril online] [http://bugzilla.internet2.edu/attachment.cgi?id=734 mono ringtones] [http://grid.unimelb.edu.au/twiki/pub/Main/NoriJohn/woco.htm nokia ringtones] [http://www.hollins.edu/ubb/Forum32/HTML/000379.html alltel ringtones] A '''piece''' in ''Tetris'' and similar [[game]]s is a geometric shape consisting of a set of blocks that is moved as a unit. A '''block''' is the part of a piece that fills one unit of the [[playfield]]. In some games, all blocks that make up a piece are colored the same; in others, especially falling piece games other than ''Tetris'' and its [[Fan game|clones]], they are colored differently.
+
A '''piece''' in ''Tetris'' and similar games is a geometric shape consisting of a set of blocks that is moved as a unit. A '''block''' is the part of a piece that fills one unit of the [[playfield]]. In some games, all blocks that make up a piece are colored the same; in others, especially falling piece games other than ''Tetris'' and its [[List of fan games|fan games]], they are colored differently.
  
 
== Polyominoes ==
 
== Polyominoes ==
A '''polyomino''' is a piece made of two or more square blocks, where all blocks are connected through full coincident edges (as if squares on graph paper).
+
A '''polyomino''' is a piece made of one or more square blocks, where all blocks are connected through full coincident edges (as if squares on graph paper).
  
*A ''free polyomino'' is one that may be translated (moved about), rotated, or reflected.
+
*A ''free polyomino'' is one that may be translated (moved about), rotated, or reflected. These are used in ''[[Pokémon Tetris]]''.
*A ''one-sided polyomino'' is one that may be translated or rotated.
+
*A ''one-sided polyomino'' is one that may be translated or rotated. These are the ones used in ''Tetris''.
 
*A ''fixed polyomino'' can only be translated.
 
*A ''fixed polyomino'' can only be translated.
  
 
Polyominoes come in several sizes:
 
Polyominoes come in several sizes:
* 2 blocks make a [[domino]]: featured in ''[[Dr. Mario]]'' and ''[[Puyo Pop]]''; seen in ''[[Tetris Blast]]''.
+
* 1 block makes a [[monomino]] or Mino: seen in ''[[Super Tetris 3]]'' (Magicaliss mode) and ''[[Puyo Puyo Tetris]]'' (Party mode and Fusion mode)
* 3 blocks make a [[tromino]] (or trimino): featured in ''[[Columns]]'' (fixed I only) and ''[[Pac-Attack]]'' (L only); seen in ''[[Tetris Blast]]''.
+
* 2 blocks make a [[domino]] or Dimino: featured in ''[[Dr. Mario]]'' and ''[[Puyo Puyo]]''; seen in ''[[Tetris Blast]]'', ''[[Super Tetris 3]]'' (Magicaliss mode) and ''[[Puyo Puyo Tetris]]'' (Fusion mode)
* 4 blocks make a [[tetromino]] (or tetramino or tetrimino): featured in ''Tetris'' and its clones. ''Lumines'' uses only O tetrominoes.
+
* 3 blocks make a [[tromino]] or Trimino: featured in ''[[Columns]]'' (fixed I only) and ''[[Pac-Attack]]'' (L only); seen in ''[[Tetris Blast]]'' (I, L) and ''Puyo Pop Fever'' (L).
* 5 blocks make a [[pentomino]]: featured in ''[[Daedalian Opus]]''; seen in ''[[Tetris 2 and Bombliss|Tetris 2  Bombliss]]''.
+
* 4 blocks make a [[tetromino]] (or tetramino or tetrimino): featured in ''Tetris'' and its clones. ''[[Lumines]]'' uses only O tetrominoes.
 +
* 5 blocks make a [[pentomino]]: featured in ''[[Daedalian Opus]]''; seen in ''[[Tetris 2 + Bombliss]]'', ''[[Tetris 64]]'', ''[[Puyo Puyo Tetris]]'' etc.
 +
 
 +
Larger sizes of polyominoes appear in ''[[Magical Tetris Challenge]]'' and some fan games. ''[[Combinos]]'' can generate arbitrary decominos (10-block polyominos). In addition, octominos can be formed in ''[[Sega Tetris]]'' by fusing two tetrominoes together.
  
 
Polyominoes are often named by a Latin letter that resembles the shape of the polyomino. For instance, an "I" has all its blocks in a straight line, and a "T" consists of an "I" tromino with one or more blocks in a straight line connected to one side of the center of the "I".
 
Polyominoes are often named by a Latin letter that resembles the shape of the polyomino. For instance, an "I" has all its blocks in a straight line, and a "T" consists of an "I" tromino with one or more blocks in a straight line connected to one side of the center of the "I".
  
== Hinged polyominoes ==
+
== Pseudo-polyominoes ==
 
{| align="right"
 
{| align="right"
|{{pfstart}}
+
|<playfield>
{{pfrow| | | | | | | | | | }}
+
..........
{{pfrow| | |Z|J|J| | | | | }}
+
..ZJJ.....
{{pfrow| | | | | |O| | | | }}
+
.....O....
{{pfrow| | | | | | | | | | }}
+
..........
{{pfrow| | |Z|J| | | | |O| }}
+
..ZJ....O.
{{pfrow| |O| | | | |Z|Z| | }}
+
.O....ZZ..
{{pfrow| |O| | | | | | |J| }}
+
.O......J.
{{pfrow| | | | | | | | | | }}
+
..........
{{pfend}}
+
</playfield>
 
|-
 
|-
| Hinged tetrominoes<br>in ''Tetris 2''
+
| Pseudo-tetrominoes<br>in ''Tetris 2''
 
|}
 
|}
A '''hinged polyomino''' is similar to a polyomino but also allows connections at a point. In games that use hinged polyominoes, a piece may break apart at the diagonal connections when it lands, and the fragments may or may not be controllable afterward.
+
A '''pseudo-polyomino''', also known as a '''hinged polyomino''', '''polyking''' or '''polyplet''' is similar to a polyomino but also allows connections at a corner. In games that use pseudo-polyominoes, a piece may break apart at the diagonal connections when it lands, and the fragments may or may not be controllable afterward.
 +
 
 +
* 2 blocks: Pseudo-domino
 +
* 3 blocks: [[Pseudo-tromino]] (appears in ''[[Tetris Effect]]'' and some fan games)
 +
* 4 blocks: [[Pseudo-tetromino]] (featured in ''[[Tetris 2]]'', appear in some fan games). Of note is the pseudo-tetromino with a hole, the smallest possible piece to have a hole, which has appeared in fan games such as ''[[The Son of Tetris Project]]''.
  
* 4 blocks: [[Hinged tetromino]] (featured in ''[[Tetris 2]]'').
+
Larger pseudo-polyominoes appear in some fan games.
  
== See Also ==
+
== Quasi-polyomino ==
 +
{| align="right"
 +
|<playfield>
 +
......
 +
.s..s.
 +
......
 +
......
 +
.s..s.
 +
......
 +
</playfield>
 +
|-
 +
| An example of a quasi-tetromino
 +
|}
 +
 
 +
A '''quasi-polyomino''' is any set of blocks regardless of whether they are connected or not (as long as they are still aligned to the grid). These are featured in some fan games, such as ''[[Kowaris]]''.
 +
 
 +
 
 +
== Other polyforms ==
 +
'''Polyhexes''' are pieces formed from regular hexagons. There are multiple Tetris-like games that use polyhexes, such as ''[[Hexion]]'' and ''Bikaka''.[http://mathworld.wolfram.com/Polyhex.html] ''Bubble Bath Babes'' uses polyhexes that may be reflected around the X or Y axis but not rotated.
 +
 
 +
'''Polyabolos''' are pieces formed from right isosceles triangles. They are featured in the NES game [[Pyramid]].
 +
 
 +
'''Polyiamonds''' are pieces formed from equilateral triangles.
 +
 
 +
== Polycubes ==
 +
A '''polycube''' is a piece made of cubic blocks, where all blocks are connected through full coincident faces. These are featured in 3D variants such as ''[[Blockout]]'' and ''[[3D Tetris]]''.
 +
 
 +
== See also ==
 
*[[Tetromino]]
 
*[[Tetromino]]
 +
 
== External links ==
 
== External links ==
 
*[http://en.wikipedia.org/wiki/Polyomino Wikipedia:Polyomino]
 
*[http://en.wikipedia.org/wiki/Polyomino Wikipedia:Polyomino]
 
*[http://en.wikipedia.org/wiki/Tetromino Wikipedia:Tetromino]
 
*[http://en.wikipedia.org/wiki/Tetromino Wikipedia:Tetromino]
 +
*[http://en.wikipedia.org/wiki/Pseudo-polyomino Wikipedia:Pseudo-polyomino]
 +
*[https://en.wikipedia.org/wiki/Polycube Wikipedia:Polycube]
 +
*[https://github.com/frankkopp/Tetris/blob/master/2009%20Tetris%20Variant%20Concepts.pdf 2009 Tetris Variant Concepts]
  
[[Category:Game Mechanics]]
+
[[Category:Articles]]
[[Category:Interface]]
 

Latest revision as of 02:29, 2 February 2021

A piece in Tetris and similar games is a geometric shape consisting of a set of blocks that is moved as a unit. A block is the part of a piece that fills one unit of the playfield. In some games, all blocks that make up a piece are colored the same; in others, especially falling piece games other than Tetris and its fan games, they are colored differently.

Polyominoes

A polyomino is a piece made of one or more square blocks, where all blocks are connected through full coincident edges (as if squares on graph paper).

  • A free polyomino is one that may be translated (moved about), rotated, or reflected. These are used in Pokémon Tetris.
  • A one-sided polyomino is one that may be translated or rotated. These are the ones used in Tetris.
  • A fixed polyomino can only be translated.

Polyominoes come in several sizes:

Larger sizes of polyominoes appear in Magical Tetris Challenge and some fan games. Combinos can generate arbitrary decominos (10-block polyominos). In addition, octominos can be formed in Sega Tetris by fusing two tetrominoes together.

Polyominoes are often named by a Latin letter that resembles the shape of the polyomino. For instance, an "I" has all its blocks in a straight line, and a "T" consists of an "I" tromino with one or more blocks in a straight line connected to one side of the center of the "I".

Pseudo-polyominoes

..........
..ZJJ.....
.....O....
..........
..ZJ....O.
.O....ZZ..
.O......J.
..........
Pseudo-tetrominoes
in Tetris 2

A pseudo-polyomino, also known as a hinged polyomino, polyking or polyplet is similar to a polyomino but also allows connections at a corner. In games that use pseudo-polyominoes, a piece may break apart at the diagonal connections when it lands, and the fragments may or may not be controllable afterward.

Larger pseudo-polyominoes appear in some fan games.

Quasi-polyomino

......
.S..S.
......
......
.S..S.
......
An example of a quasi-tetromino

A quasi-polyomino is any set of blocks regardless of whether they are connected or not (as long as they are still aligned to the grid). These are featured in some fan games, such as Kowaris.


Other polyforms

Polyhexes are pieces formed from regular hexagons. There are multiple Tetris-like games that use polyhexes, such as Hexion and Bikaka.[1] Bubble Bath Babes uses polyhexes that may be reflected around the X or Y axis but not rotated.

Polyabolos are pieces formed from right isosceles triangles. They are featured in the NES game Pyramid.

Polyiamonds are pieces formed from equilateral triangles.

Polycubes

A polycube is a piece made of cubic blocks, where all blocks are connected through full coincident faces. These are featured in 3D variants such as Blockout and 3D Tetris.

See also

External links