Difference between revisions of "Lobster"

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{{stub}}
{{Spaceship
{{Spaceship
|name        = Lobster
|name        = Lobster
|pname        = 83p7h1v1
|pname        = lobster
|c            = 83
|c            = 83
|bx          = 26
|bx          = 26
Line 12: Line 11:
|z            = c/7
|z            = c/7
|h            = 81.7
|h            = 81.7
|symmetry    = /
|discoverer  = Matthias Merzenich
|discoverer  = Matthias Merzenich
|discoveryear = 2011
|discoveryear = 2011
|rulemin      = B3/S23
|rulemin      = B3/S23
|rulemax      = B38/S2378
|rulemax      = B38/S2378
|rulespecial  = [[Conway's Game of Life|Conway Life]]
|isorulemin  = B3/S23
|isorulemin  = B3/S23
|isorulemax  = B2i35ei6ein7e8/S234ce5cky6-an78
|isorulemax  = B2i35ei6ein7e8/S234ce5cky6-an78
|animated    = true
|synthesis    = 118
|plaintext    = true
|plaintext    = true
|rle          = true
|rle          = true
|viewerconfig = #C [[ TRACKLOOP 7 1/7 -1/7 THUMBSIZE 2 GPS 4 HEIGHT 480 ]]
|animated    = true
|viewerconfig = #C [[ HEIGHT 600 WIDTH 600 THUMBSIZE 2 ZOOM 18 GPS 4 TRACKLOOP 7 -1/7 -1/7 ]]
|apgcode      = xq7_ggg0774wguez1130g06mgcc403ju4y1ooz03331oo31gy112w62ec0ac4zy213111igzy4cc0j6mzy831
|apgcode      = xq7_ggg0774wguez1130g06mgcc403ju4y1ooz03331oo31gy112w62ec0ac4zy213111igzy4cc0j6mzy831
}}
}}
'''Lobster''' is a [[c/7 diagonal]] [[spaceship]] that was discovered by [[Matthias Merzenich]] on August 19, {{year|2011}}.<ref name="post4983" /> It was the first c/7 diagonal spaceship to be found. It consists of two gliders pulling a tagalong-like object that then rephases them. It can be infinitely extended.<ref>{{Cite web|url=http://pentadecathlon.com/lifeNews/2011/08/new_spaceship_velocity.html|title=New spaceship velocity|work=Game of Life News|author=Adam Goucher|date=August 26, 2011|accessdate=September 12, 2011}}</ref><ref name="post5006" />
'''Lobster''' is a [[c/7 diagonal]] [[spaceship]] that was discovered by [[Matthias Merzenich]] on August 19, {{year|2011}}.<ref name="post4983" /> It was the first c/7 diagonal spaceship to be found. It consists of two gliders pulling a tagalong-like object that then rephases them. It can be infinitely extended, with its wings used as [[pushalong]]s<ref>{{LinkGoLNews|2011/08/new_spaceship_velocity.html|title=New spaceship velocity|author=Adam P. Goucher|date=August 26, 2011}}</ref><ref name="post5006" /> It can also burn through one or two rows of blocks.


The Lobster was voted the [[Pattern of the Year]] 2011 on [[ConwayLife.com]], along with the [[fully universal Turing machine]].<ref name="post6325" />
{{POTY|year=2011|rank=1|tie=the [[fully universal Turing machine]]}}
{{gallery top}}
{{gallery item|{{EmbedViewer
|rle          = x = 45, y = 35, rule = B3/S23
11b3o$11bo$2o2bobo5bo2b2o$obob2o9b2o$o4bo2bo2b2o$6bo5b2o$2b2o7bo2bo$2b
2o$13bo16b3o$20b3o7bo$20bo10bo2b2o$9b2o2bobo5bo2b2o8b2o$9bobob2o9b2o4b
2o$9bo4bo2bo2b2o9b2o$15bo5b2o7bo2bo$11b2o7bo2bo$11b2o19bo2bo$22bo9bo3b
o$33b3obo$38bo$18b2o2bobo13bo$18bobob2o13bo$18bo4bo2b2o13b2o$24bo3bo6b
2o2b2o2bo$20b2o6bo6bo2bo$20b2o4bobo4b2o$27bo5bo3bo3bo$28bo2bo4b2o$29b
2o3bo5bobo$33bo8b2o$33bo4bo$32bo3bo$32bo5b2o$33bo5bo!
|viewerconfig = #C [[ HEIGHT 600 WIDTH 600 THUMBSIZE 2 ZOOM 10 GPS 8 AUTOSTART LOOP 7 TRACK -1/7 -1/7 ]]
|position    = center
|caption      = Multiple copies of a pushalong supported by Lobster<ref name="post5006" />
|style        = width:300px;
}}}}
{{gallery item|{{EmbedViewer
|rle          = x = 44, y = 41, rule = B3/S23
2o$2o2$3b2o$3b2o2$6b2o$6b2o2$9b2o$9b2o2$12b2o$12b2o2$15b2o13b3o$15b2o
13bo$31bo2b2o$18b2o14b2o$18b2o10b2o$31b2o$21b2o7bo2bo$21b2o$32bo2bo$32b
o3bo$33b3obo$38bo$18b2o2bobo13bo$18bobob2o13bo$18bo4bo2b2o13b2o$24bo3b
o6b2o2b2o2bo$20b2o6bo6bo2bo$20b2o4bobo4b2o$27bo5bo3bo3bo$28bo2bo4b2o$
29b2o3bo5bobo$33bo8b2o$33bo4bo$32bo3bo$32bo5b2o$33bo5bo!
|viewerconfig = #C [[ HEIGHT 600 WIDTH 600 THUMBSIZE 2 ZOOM 10 GPS 8 AUTOSTART T 0 PAUSE 1 T 126 PAUSE 1 LOOP 127 ]]
|position    = center
|caption      = A lobster can burn through diagonally placed blocks<ref name="post172206" />
|style        = width:300px;
}}}}
{{gallery bottom}}
== Tagalongs ==
On April 12, 2025, [[iNoMed]] found a [[tagalong]] for the lobster, based on a spaceship partial rediscovered by [[Shuich01]]. It can be added to one or both 'pincers'.<ref name="post209777" />
 
With B4k (in {{rl|4K Life}}), this tagalong is a self-sustaining 11-cell spaceship known as the tubber, and was discovered no later than in a Catagolue haul by 77topaz on May 15, 2018.
{{gallery top}}
{{gallery item|{{EmbedViewer
|rle          = x = 33, y = 26, rule = B3/S23
19b3o$19bo$20bo2b2o$23b2o$19b2o$20b2o$19bo2bo2$21bo2bo$21bo3bo$22b3obo
$27bo$7b2o2bobo13bo$7bobob2o13bo$7bo4bo2b2o13b2o$13bo3bo6b2o2b2o2bo$9b
2o6bo6bo2bo$9b2o4bobo4b2o$5bo10bo5bo3bo3bo$5bo11bo2bo4b2o$bobo2b2o10b
2o3bo5bobo$2o6b3o11bo8b2o$o2bobo3b2o11bo4bo$bo19bo3bo$21bo5b2o$22bo5bo!
|viewerconfig = #C [[ HEIGHT 600 WIDTH 600 THUMBSIZE 2 ZOOM 10 GPS 8 AUTOSTART LOOP 7 TRACK -1/7 -1/7 ]]
|position    = center
|caption      = A lobster with the tagalong attached.
|style        = width:300px;
|apgcode      = xq7_ggg0774wguez1130g06mgcc403ju4y1ooz03331oo31gy112w62ec0ac4zy213111igzxkkowcc0j6mzy0b3cy131zx567
}}}}
{{gallery item|{{EmbedViewer
|rle          = x = 8, y = 6, rule = B34k/S23
5bo$5bo$bobo2b2o$2o$o2bobo$bo!
|viewerconfig = #C [[ HEIGHT 420 THUMBSIZE 4 ZOOM 32 GPS 8 AUTOSTART LOOP 7 TRACK -1/7 -1/7 ]]
|position    = center
|caption      = The tubber, a spaceship in B34k/S23
|style        = width:200px;
|apgcode      = xq7_6150a6e/b34ks23
}}}}
{{gallery bottom}}
 
== Synthesis ==
In May {{year|2026}}, [[TigerCub414]] made progress on a synthesis of lobster.<ref name="post228518"/><ref name="post228954"/> Prior to lobster having a known synthesis, [[Goldtiger997]] found ways to attach the wing pushalong and tubber tagalong to lobster.<ref name="post228972"/> Goldtiger997 completed a final synthesis step on June 1.<ref name="post229315"/> Over the course of the next two days, a collaborative effort by Goldtiger997, [[Chris857]], [[iNoMed]], [[KtT]], and [[vilc]] completed the synthesis<ref name="post229331"/> and then reduced the cost by 67 gliders.<ref name="post229400"/>


== References ==
== References ==
Line 45: Line 102:
|date  = August 20, 2011
|date  = August 20, 2011
}}</ref>
}}</ref>
<ref name="post6325">{{LinkForumThread
<ref name="post172206">{{LinkForumThread
|format = ref
|p      = 172206
|title  = Re: Thread For Your Accidental Discoveries
|author = qqd
|date  = November 29, 2023
}}</ref>
<ref name="post209777">{{LinkForumThread
|format = ref
|p      = 209777
|title  = Re: Spaceship Discussion Thread
|author = iNoMed
|date  = April 12, 2025
}}</ref>
<ref name="post228518">{{LinkForumThread
|format = ref
|p      = 228518
|title  = Re: Small Spaceship Syntheses
|author = TigerCub414
|date  = May 9, 2026
}}</ref>
<ref name="post228954">{{LinkForumThread
|format = ref
|p      = 228954
|title  = Re: Small Spaceship Syntheses
|author = TigerCub414
|date  = May 22, 2026
}}</ref>
<ref name="post228972">{{LinkForumThread
|format = ref
|p      = 228972
|title  = Re: Small Spaceship Syntheses
|author = Goldtiger997
|date  = May 23, 2026
}}</ref>
<ref name="post229315">{{LinkForumThread
|format = ref
|p      = 229315
|title  = Re: Small Spaceship Syntheses
|author = Goldtiger997
|date  = June 1, 2026
}}</ref>
<ref name="post229331">{{LinkForumThread
|format = ref
|format = ref
|title  = Patterns of the Year 2011
|p      = 229331
|p      = 6325
|title  = Re: Small Spaceship Syntheses
|author = beebop
|author = vilc
|date  = February 28, 2012
|date  = June 1, 2026
}}</ref>
}}</ref>
<ref name="post229400">{{LinkForumThread
|format = ref
|p      = 229400
|title  = Re: Small Spaceship Syntheses
|author = iNoMed
|date  = June 3, 2026
}}</ref>
</references>
</references>


== External links ==
== External links ==
{{LinkLexicon|lex_l.htm#lobster|name=Lobster}}
* {{LinkLexicon|lex_l.htm#lobster|name=Lobster}}
{{LinkCatagolue|xq7_ggg0774wguez1130g06mgcc403ju4y1ooz03331oo31gy112w62ec0ac4zy213111igzy4cc0j6mzy831|patternname=Lobster}}
* {{LinkCatagolue|xq7_ggg0774wguez1130g06mgcc403ju4y1ooz03331oo31gy112w62ec0ac4zy213111igzy4cc0j6mzy831|patternname=Lobster}}
 
{{Symmetry|diagonal2}}

Latest revision as of 16:42, 3 June 2026

Lobster
x = 26, y = 26, rule = B3/S23 12b3o$12bo$13bo2b2o$16b2o$12b2o$13b2o$12bo2bo2$14bo2bo$14bo3bo$15b3obo $20bo$2o2bobo13bo$obob2o13bo$o4bo2b2o13b2o$6bo3bo6b2o2b2o2bo$2b2o6bo6b o2bo$2b2o4bobo4b2o$9bo5bo3bo3bo$10bo2bo4b2o$11b2o3bo5bobo$15bo8b2o$15b o4bo$14bo3bo$14bo5b2o$15bo5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ HEIGHT 600 WIDTH 600 THUMBSIZE 2 ZOOM 18 GPS 4 TRACKLOOP 7 -1/7 -1/7 ]]
View animated image
View static image
Pattern type Spaceship
Number of cells 83
Bounding box 26 × 26
Direction Diagonal
Period 7 (mod: 7)
Speed c/7 | c/7
Heat 81.7
Kinetic symmetry /
Discovered by Matthias Merzenich
Year of discovery 2011

Lobster is a c/7 diagonal spaceship that was discovered by Matthias Merzenich on August 19, 2011.[1] It was the first c/7 diagonal spaceship to be found. It consists of two gliders pulling a tagalong-like object that then rephases them. It can be infinitely extended, with its wings used as pushalongs[2][3] It can also burn through one or two rows of blocks.

Lobster was voted Pattern of the Year for 2011 on the ConwayLife.com forums, tied with the fully universal Turing machine.[4]

x = 45, y = 35, rule = B3/S23 11b3o$11bo$2o2bobo5bo2b2o$obob2o9b2o$o4bo2bo2b2o$6bo5b2o$2b2o7bo2bo$2b 2o$13bo16b3o$20b3o7bo$20bo10bo2b2o$9b2o2bobo5bo2b2o8b2o$9bobob2o9b2o4b 2o$9bo4bo2bo2b2o9b2o$15bo5b2o7bo2bo$11b2o7bo2bo$11b2o19bo2bo$22bo9bo3b o$33b3obo$38bo$18b2o2bobo13bo$18bobob2o13bo$18bo4bo2b2o13b2o$24bo3bo6b 2o2b2o2bo$20b2o6bo6bo2bo$20b2o4bobo4b2o$27bo5bo3bo3bo$28bo2bo4b2o$29b 2o3bo5bobo$33bo8b2o$33bo4bo$32bo3bo$32bo5b2o$33bo5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 600 WIDTH 600 THUMBSIZE 2 ZOOM 10 GPS 8 AUTOSTART LOOP 7 TRACK -1/7 -1/7 ]]
Multiple copies of a pushalong supported by Lobster[3]
(click above to open LifeViewer)
x = 44, y = 41, rule = B3/S23 2o$2o2$3b2o$3b2o2$6b2o$6b2o2$9b2o$9b2o2$12b2o$12b2o2$15b2o13b3o$15b2o 13bo$31bo2b2o$18b2o14b2o$18b2o10b2o$31b2o$21b2o7bo2bo$21b2o$32bo2bo$32b o3bo$33b3obo$38bo$18b2o2bobo13bo$18bobob2o13bo$18bo4bo2b2o13b2o$24bo3b o6b2o2b2o2bo$20b2o6bo6bo2bo$20b2o4bobo4b2o$27bo5bo3bo3bo$28bo2bo4b2o$ 29b2o3bo5bobo$33bo8b2o$33bo4bo$32bo3bo$32bo5b2o$33bo5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 600 WIDTH 600 THUMBSIZE 2 ZOOM 10 GPS 8 AUTOSTART T 0 PAUSE 1 T 126 PAUSE 1 LOOP 127 ]]
A lobster can burn through diagonally placed blocks[5]
(click above to open LifeViewer)

Tagalongs

On April 12, 2025, iNoMed found a tagalong for the lobster, based on a spaceship partial rediscovered by Shuich01. It can be added to one or both 'pincers'.[6]

With B4k (in 4K Life), this tagalong is a self-sustaining 11-cell spaceship known as the tubber, and was discovered no later than in a Catagolue haul by 77topaz on May 15, 2018.

x = 33, y = 26, rule = B3/S23 19b3o$19bo$20bo2b2o$23b2o$19b2o$20b2o$19bo2bo2$21bo2bo$21bo3bo$22b3obo $27bo$7b2o2bobo13bo$7bobob2o13bo$7bo4bo2b2o13b2o$13bo3bo6b2o2b2o2bo$9b 2o6bo6bo2bo$9b2o4bobo4b2o$5bo10bo5bo3bo3bo$5bo11bo2bo4b2o$bobo2b2o10b 2o3bo5bobo$2o6b3o11bo8b2o$o2bobo3b2o11bo4bo$bo19bo3bo$21bo5b2o$22bo5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 600 WIDTH 600 THUMBSIZE 2 ZOOM 10 GPS 8 AUTOSTART LOOP 7 TRACK -1/7 -1/7 ]]
A lobster with the tagalong attached.
(click above to open LifeViewer)
Catagolue: here
x = 8, y = 6, rule = B34k/S23 5bo$5bo$bobo2b2o$2o$o2bobo$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 420 THUMBSIZE 4 ZOOM 32 GPS 8 AUTOSTART LOOP 7 TRACK -1/7 -1/7 ]]
The tubber, a spaceship in B34k/S23
(click above to open LifeViewer)
Catagolue: here


Synthesis

In May 2026, TigerCub414 made progress on a synthesis of lobster.[7][8] Prior to lobster having a known synthesis, Goldtiger997 found ways to attach the wing pushalong and tubber tagalong to lobster.[9] Goldtiger997 completed a final synthesis step on June 1.[10] Over the course of the next two days, a collaborative effort by Goldtiger997, Chris857, iNoMed, KtT, and vilc completed the synthesis[11] and then reduced the cost by 67 gliders.[12]

References

  1. ↑ Matthias Merzenich (August 19, 2011). c/7 diagonal spaceship (discussion thread) at the ConwayLife.com forums
  2. ↑ New spaceship velocity at Game of Life News. Posted by Adam P. Goucher on August 26, 2011.
  3. ↑ 3.0 3.1 Matthias Merzenich (August 20, 2011). Re: c/7 diagonal spaceship (discussion thread) at the ConwayLife.com forums
  4. ↑ beebop (February 28, 2012). Patterns of the Year 2011 (discussion thread) at the ConwayLife.com forums
  5. ↑ qqd (November 29, 2023). Re: Thread For Your Accidental Discoveries (discussion thread) at the ConwayLife.com forums
  6. ↑ iNoMed (April 12, 2025). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
  7. ↑ TigerCub414 (May 9, 2026). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  8. ↑ TigerCub414 (May 22, 2026). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  9. ↑ Goldtiger997 (May 23, 2026). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  10. ↑ Goldtiger997 (June 1, 2026). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  11. ↑ vilc (June 1, 2026). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  12. ↑ iNoMed (June 3, 2026). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums

External links

Retrieved from "https://conwaylife.com/w/index.php?title=Lobster&oldid=172898"