Twelve loop: Difference between revisions

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all 12-bit still lifes found in Lifeline Volume 10
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|pentadecathlonid = 12.35
|pentadecathlonid = 12.35
}}{{distinguish|Snorkel loop}}
}}{{distinguish|Snorkel loop}}
'''Twelve loop''' is a {{slcells|12}}-[[cell]] [[still life]].
'''Twelve loop''' is a {{slcells|12|text=12-cell}} [[still life]].


It can be interpreted as a [[hook]] with an attached [[hooked nine]].
It can be interpreted as a [[hook]] with an attached [[hooked nine]].


== [[List of common still lifes|Commonness]] ==
== Commonness ==
{{main|List of common still lifes}}
It is the 147th most common still life on [[Adam P. Goucher]]'s [[Catagolue]] and the 18th most common with 12 cells.
It is the 147th most common still life on [[Adam P. Goucher]]'s [[Catagolue]] and the 18th most common with 12 cells.


== [[Glider synthesis]] ==
== Glider synthesis ==
{{Small constructible periodic object}}
{{Small constructible periodic object}}


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== External links ==
== External links ==
{{LinkCatagolue|xs12_31egma}}
* {{LinkCatagolue|xs12_31egma}}
{{LinkNiemiec|12/12-114.rle|patternname=12.114}}
* {{LinkNiemiec|p1-12.htm|patternname=The 121 twelve-bit still-lifes}} (12.114)
{{LinkPentadecathlonObject|12.35}}
* {{LinkPentadecathlonObject|12.35}}


__NOTOC__
__NOTOC__

Revision as of 02:19, 22 July 2022

Twelve loop
x = 6, y = 5, rule = B3/S23 b2o$o2bo$bobo$2obobo$4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]]
Pattern type Strict still life
Number of cells 12
Bounding box 6 × 5
Frequency class 23.5
Static symmetry Unspecified
Discovered by Robert Wainwright
Everett Boyer
Year of discovery 1973
Not to be confused with Snorkel loop.

Twelve loop is a 12-cell still life.

It can be interpreted as a hook with an attached hooked nine.

Commonness

Main article: List of common still lifes

It is the 147th most common still life on Adam P. Goucher's Catagolue and the 18th most common with 12 cells.

Glider synthesis

All strict still lifes with a population of 23 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 35 or fewer cells are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.

See also