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__NOTOC__{{Methuselah|l=29055|bx=9|by=15|name=Lidka|pname=lidka|c=13|discoverer=Andrzej Okrasinski|discoveryear=2005|life105=true|life106=true|plaintext=true|rle=true}}
{{Methuselah
'''Lidka''' is a [[methuselah]] that was originally found in the 15-cell form shown below by [[:Category:Patterns found by Andrzej Okrasinski|Andrzej Okrasinski]], which has a lifespan of 29053 [[generation]]s. The 13-cell [[grandparent]] with lifespan 29055 shown to the right was soon after found by [[:Category:Patterns found by David Bell|David Bell]].
|name        = Lidka
|pname        = lidka
|c            = 13
|bx           = 9
|by           = 15
|l            = 29055
|f            = 1623
|mcps        = 21
|symmetry    = C1
|discoverer   = Andrzej Okrasinski
|discoverer2  = David Bell
|discoveryear = 2005
|synthesis2  = 6
|synthesisRLE = true
|plaintext   = true
|rle         = true
}}
'''Lidka''' is a [[methuselah]] that was originally found in the 15-cell form shown below by [[Andrzej Okrasinski]], which has a lifespan of 29053 [[generation]]s. The 13-cell [[grandparent]] with lifespan 29055 shown to the right was soon after found by [[David Bell]]. [[Simon Ekström]] identified a 13-cell predecessor with a 9&times;6 bounding box and a lifespan of 29126 on March 8, {{year|2017}}.<ref name="post41383" />


Incidentally, the 9-cell pattern in the lower right corner of this pattern, fitting in a 5x5 bounding box, is also a methuselah in its own right: it stabilizes after 595 generations to a constellation of 182 cells.
Incidentally, the 9-cell pattern in the lower right corner of this pattern, fitting in a 5&times;5 bounding box, is also a methuselah in its own right: it stabilizes after 595 generations to a constellation of 182 cells.


==Stable pattern==
== Stable pattern ==
The stable pattern that results from Lidka has 1623 [[cell]]s and consists of 135 [[blinker]]s (including seven [[traffic light]]s, three [[Interchange]]s), 102 [[block]]s, 57 [[beehive]]s (including two [[honey farm]]s), 28 [[glider]]s, 18 [[loaf|loaves]], 15 [[boat]]s, six [[ship]]s, five [[pond]]s, two [[tub]]s, two [[ship-tie]]s in the form of a [[fleet]], one [[toad]], one [[beacon]], and one [[long boat]].<ref>{{cite web|url=http://gameoflife-news.blogspot.com/2005/07/new-record-methuselah.html |title=New Record Methuselah |author=Koenig, H. |date=July 14, 2005 |accessdate=February 9, 2009}}</ref>
The stable pattern that results from Lidka has 1623 [[cell]]s and consists of 135 [[blinker]]s (including seven [[traffic light]]s, three [[Interchange]]s), 102 [[block]]s, 57 [[beehive]]s (including two [[honey farm]]s), 28 [[glider]]s, 18 [[loaf|loaves]], 15 [[boat]]s, six [[ship]]s, five [[pond]]s, two [[tub]]s, two [[ship-tie]]s in the form of a [[fleet]], one [[toad]], one [[beacon]], and one [[long boat]].<ref>{{LinkGoLNews|2005/07/new_record_methuselah.html|title=New Record Methuselah|date=July 14, 2005|author=Heinrich Koenig}}</ref>


==Image gallery==
{| class="wikitable"
<gallery>
| [[File:29055M final.png|300px]]
Image:29055M_gen2.png|Generation 2 of Lidka is the form in which it was originally found
|-
Image:29055M_final.png|Generation 29055
| Generation 29055
</gallery>
|}


==See also==
== Gallery ==
*[[List of long-lived methuselahs]]
{{gallery top}}
{{gallery item|{{EmbedViewer
|pname        = lidka29126
|viewerconfig = #C [[ THUMBSIZE 2 ]]
|position    = center
|caption      = [[Simon Ekström]]'s 29126-generation version of Lidka
|style        = width:300px;
}}}}
{{gallery item|{{EmbedViewer
|pname        = lidka29053
|viewerconfig = #C [[ THUMBSIZE 2 ]]
|position    = center
|caption      = Generation 2 of Lidka is the form in which it was originally found
|style        = width:300px;
}}}}
{{gallery bottom}}


==References==
== See also ==
<references/>
* [[List of long-lived methuselahs]]


==External links==
== References ==
<references>
<ref name="post41383">{{LinkForumThread
|format    = ref
|author    = Simon Ekström
|title      = Re: Long-lived methuselahs
|date      = March 8, 2017
|accessdate = January 21, 2018
|p          = 41383
}}</ref>
</references>
 
== External links ==
{{LinkLexicon|lex_l.htm#lidka}}
{{LinkLexicon|lex_l.htm#lidka}}
*[http://gameoflife-news.blogspot.com/2005/07/new-record-methuselah.html New Record Methuselah] at Game of Life News
{{LinkCatagolue|code=xp2_ywccy52552zyzy2ciczzyagyroozy6888030888y5252zya7zyfeyb1110szy7gggybgwccysooy4g88gx696zw888y0ey1ey8123yzy311z70ggg07y0111y3g88gym2220oymoozye4440121yiccy21zyzy1352yc252zyeggya4aiczye1046y77ye222y3szyz0s01110sy72220o0222zyyggg0222yd1zywey1ezyy111|patternname=Lidka minus tub ash|format=pseudo-object}}
*[http://www.geocities.com/conwaylife/ Andrzej Okrasinski's Game of Life page describing the discovery]
{{LinkForumThread|f=2|t=589|title=Methuselah Lidka improved}}
[[Category:Patterns found by David Bell]]
* [http://gameoflife-news.blogspot.com/2005/07/new-record-methuselah.html New Record Methuselah] at Game of Life News
* [http://www.geocities.com/conwaylife/ Andrzej Okrasinski's Game of Life page describing the discovery]
 
__NOTOC__

Latest revision as of 13:26, 22 January 2026

Lidka
x = 9, y = 15, rule = B3/S23 bo$obo$bo8$8bo$6bobo$5b2obo2$4b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
View static image
Pattern type Methuselah
Number of cells 13
Bounding box 9 × 15
MCPS 21
Lifespan 29055 generations
Final population 1623
L/I 2235
F/I 124.8
F/L 0.056
L/MCPS 1383.6
Static symmetry C1
Discovered by Andrzej Okrasinski
David Bell
Year of discovery 2005

Lidka is a methuselah that was originally found in the 15-cell form shown below by Andrzej Okrasinski, which has a lifespan of 29053 generations. The 13-cell grandparent with lifespan 29055 shown to the right was soon after found by David Bell. Simon Ekström identified a 13-cell predecessor with a 9×6 bounding box and a lifespan of 29126 on March 8, 2017.[1]

Incidentally, the 9-cell pattern in the lower right corner of this pattern, fitting in a 5×5 bounding box, is also a methuselah in its own right: it stabilizes after 595 generations to a constellation of 182 cells.

Stable pattern

The stable pattern that results from Lidka has 1623 cells and consists of 135 blinkers (including seven traffic lights, three Interchanges), 102 blocks, 57 beehives (including two honey farms), 28 gliders, 18 loaves, 15 boats, six ships, five ponds, two tubs, two ship-ties in the form of a fleet, one toad, one beacon, and one long boat.[2]

Generation 29055
x = 9, y = 6, rule = B3/S23 6bo$6b3o2$3b2o3bo$3bo4bo$3o5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ]]
Simon Ekström's 29126-generation version of Lidka
(click above to open LifeViewer)
RLE: here Plaintext: here
x = 9, y = 15, rule = B3/S23 bo$obo$bo8$6b3o$5bo2bo$4bo3bo$4bo$4b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ]]
Generation 2 of Lidka is the form in which it was originally found
(click above to open LifeViewer)
RLE: here Plaintext: here


See also

References

  1. ↑ Simon Ekström (March 8, 2017). Re: Long-lived methuselahs (discussion thread) at the ConwayLife.com forums
  2. ↑ New Record Methuselah at Game of Life News. Posted by Heinrich Koenig on July 14, 2005.


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