Difference between revisions of "Copperhead"

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{{Spaceship
{{Spaceship
|name         = Copperhead
|name             = Copperhead
|pname       = copperhead
|pname           = copperhead
|c           = 28
|c               = 28
|bx           = 6
|bx               = 6
|by           = 12
|by               = 12
|dir         = Orthogonal
|dir             = Orthogonal
|p           = 10
|p               = 10
|m           = 10
|m               = 10
|s           = c/10
|s               = c/10
|h           = 27.8
|z                = c/10
|discoverer   = zdr
|h               = 27.8
|discoveryear = 2016
|discoverer       = zdr
|rulemin     = B3/S23
|discoveryear     = 2016
|rulemax     = B38/S0238
|rulemin         = B3/S23
|rulespecial = [[Conway's Game of Life|Conway Life]]
|rulemax         = B38/S0238
|synthesis   = 22
|rulespecial     = [[Conway's Game of Life|Conway Life]]
|synthesisRLE = true
|isorulemin      = B3-ceky/S23-cik
|rle         = true
|isorulemax      = B34ceq5aeijk6aen7c8/S0234ceijyz5ekn6-a7e8
|animated     = true
|synthesis       = 13
|viewerconfig = #C [[ TRACKLOOP 10 0 -1/10 THUMBSIZE 3 GPS 5 HEIGHT 800 WIDTH 483 ]]
|synthesisRLE     = true
|plaintext        = true
|rle             = true
|animated         = true
|viewerconfig     = #C [[ TRACKLOOP 10 0 -1/10 THUMBSIZE 3 GPS 5 HEIGHT 800 WIDTH 483 ]]
|apgcode          = xq10_o5995ozes88sezw33
|pentadecathlonid = 28P10H1V0.1
}}
}}
'''Copperhead''' is a [[c/10 orthogonal]] [[spaceship]] discovered by [[zdr]] on March 5, 2016.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=2057|title=is this c/10 spaceship known?|author=zdr|date=March 5, 2016|accessdate=March 5, 2016}}</ref>
'''Copperhead''' is a [[c/10 orthogonal]] [[spaceship]] discovered by "[[zdr]]" on March 5, {{year|2016}} using a modified version of [[gfind]] known as [[zfind]].<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=2057|title=is this c/10 spaceship known?|author=zdr|date=March 5, 2016|accessdate=March 5, 2016}}</ref> It was the first spaceship of this speed to be discovered, and surprised many due to its small size and high period.
<div style="clear:left">
<div style="clear:left">
==Reactions==
==Reactions==
Line 27: Line 33:


===Fireship===
===Fireship===
{{main|Fireship}}


[[Simon Ekström]] found [[Fireship|what appeared to be a tagalong]] with a large spark on March 20, 2016.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?p=28956#p28956|title=Re: is this c/10 spaceship known?|author=Simon Ekström|date=March 20, 2016|accessdate=March 20, 2016}}</ref> Unlike most tagalongs, this tagalong actually temporarily interacts with the hauled block, and is thus not a true tagalong but a whole new spaceship.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=2057&start=175#p28988|title=Re: is this c/10 spaceship known?|author=towerator|date=20 March 2016|accessdate=30 June 2016}}</ref> However, blocks hauled by the tagalongs in tagalong pyramids are unaffected, and are thus true tagalongs.
[[Simon Ekström]] found [[Fireship|what appeared to be a tagalong]] with a large spark on March 20, 2016.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?p=28956#p28956|title=Re: is this c/10 spaceship known?|author=Simon Ekström|date=March 20, 2016|accessdate=March 20, 2016}}</ref> Unlike most tagalongs, this tagalong actually temporarily interacts with the hauled block, and is thus not a true tagalong but a whole new spaceship, named [[fireship]] due to its unusual spark.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=2057&start=175#p28988|title=Re: is this c/10 spaceship known?|author=towerator|date=20 March 2016|accessdate=30 June 2016}}</ref> However, blocks hauled by the tagalongs in tagalong pyramids are unaffected, and are thus true tagalongs.
 
[[Fireship tagalong|A 2c/20 tagalong for the fireship]] is also known, discovered by [[christoph.r]] on October 11, 2018.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=576&p=64623#p64623|title=Re: Thread for your unsure discoveries|author=christoph.r|date=October 11, 2018|accessdate=November 30, 2018}}</ref>
 
===Cottonmouth===
{{main|Cottonmouth}}
 
A true pushalong known as the [[cottonmouth]] was found by [[AforAmpere]] on March 24, 2018 for both the copperhead and the similar [[fireship]]. Because its front end matches that of the copperhead, it can be infinitely placed on itself.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=2031&hilit=cottonmouth&start=600#p58357|title=Re: Spaceship Discussion Thread|author=AforAmpere|date=March 24, 2018|accessdate=August 30, 2018}}</ref>


==Synthesis==
==Synthesis==
The first synthesis was proposed by Aidan F. Pierce on the day of discovery. An alternative synthesis utilising [[fumarole]] as a predecessor, presented by Tanner Jacobi an hour later, was much more efficient. After optimizations by Mark Niemiec and Chris Cain the total synthesis cost made 22 gliders. A copperhead [[gun]] was then completed by Alexey Nigin on March 6, 2016.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=2057&p=28103#p28101|title=Re: is this c/10 spaceship known?|author=Alexey Nigin|date=March 6, 2016|accessdate=March 6, 2016}}</ref> A faster gun was constructed one day later.<ref>{{cite web|url=http://conwaylife.com/forums/viewtopic.php?p=28176#p28176|title=Re: is this c/10 spaceship known?|author=gmc_nxtman|date=7 March, 2016|accessdate= 8 March, 2016}}</ref>  
The first synthesis was proposed by Aidan F. Pierce on the day of discovery. An alternative synthesis utilising [[fumarole]] as a predecessor, presented by Tanner Jacobi an hour later, was much more efficient. After optimizations by Mark Niemiec and Chris Cain the total synthesis cost made 22 gliders. A copperhead [[gun]] was then completed by Alexey Nigin on March 6, 2016.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=2057&p=28103#p28101|title=Re: is this c/10 spaceship known?|author=Alexey Nigin|date=March 6, 2016|accessdate=March 6, 2016}}</ref> A faster gun was constructed one day later.<ref>{{cite web|url=http://conwaylife.com/forums/viewtopic.php?p=28176#p28176|title=Re: is this c/10 spaceship known?|author=gmc_nxtman|date=7 March, 2016|accessdate= 8 March, 2016}}</ref>  


The first copperhead to emerge from the [[ash]] of a [[soup]] appeared on April 4, 2016 in a [[Symmetry|D2_+2]] haul submitted to [[apgsearch|Catagolue]] by Apple Bottom.<ref>{{cite web|url=https://catagolue.appspot.com/haul/b3s23/D2_+2/13a2db2966f2178690fe73358a3dc2e4|title=Haul|author=Apple Bottom|date=April 4, 2016|accessdate=April 4, 2016|work=Catagolue}}</ref>
gmc_nxtman reduced the copperhead's synthesis cost to 14 gliders on July 9, 2017;<ref>{{cite web|url=http://conwaylife.com/forums/viewtopic.php?f=2&t=2057&p=46308#p46308|title=Re: is this c/10 spaceship known?|author=gmc_nxtman|date=July 9, 2017|accessdate=July 9, 2017}}</ref> 2718281828 posted a 13-glider synthesis on January 9, 2018.<ref name="post54874" />
 
===Soup search results===
 
The first copperhead to emerge from the [[ash]] of a [[soup]] appeared on April 4, 2016 in a [[Symmetry|D2_+2]] haul submitted to [[apgsearch|Catagolue]] by Apple Bottom.<ref>{{cite web|url=https://catagolue.appspot.com/haul/b3s23/D2_+2/13a2db2966f2178690fe73358a3dc2e4|title=Haul|author=Apple Bottom|date=April 4, 2016|accessdate=April 4, 2016|work=Catagolue}}</ref> Several more copperheads have since been found in this and other related symmetries. It is the first and currently only spaceship with a non-standard [[speed]] to appear in a symmetric soup search.


==Naming==
==Naming==
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==References==
==References==
<references/>
<references>
<ref name="post54874">{{LinkForumThread
|accessdate = January 9, 2018
|date      = January 9, 2018
|author    = 2718281828
|title      = Re: Small Spaceship Syntheses
|p          = 54874
|format    = ref
}}</ref>
</references>


==External links==
==External links==


{{LinkCatagolue|xq10_o5995ozes88sezw33}}
{{LinkCatagolue|xq10_o5995ozes88sezw33}}
{{LinkPentadecathlonObject|28P10H1V0.1}}
{{LinkLexicon|lex_c.htm#copperhead}}
* Alexey Nigin: ''[https://niginsblog.wordpress.com/2016/03/07/new-spaceship-speed-in-conways-game-of-life/ New Spaceship Speed in Conway’s Game of Life]''
* Alexey Nigin: ''[https://niginsblog.wordpress.com/2016/03/07/new-spaceship-speed-in-conways-game-of-life/ New Spaceship Speed in Conway’s Game of Life]''


[[Category:Non-monotonic spaceships]]
[[Category:Non-monotonic spaceships]]
[[Category:Patterns discovered by pseudonymous users]]
{{Symmetry|orthogonal2}}
{{seminatural}}
__NOTOC__
__NOTOC__

Revision as of 00:54, 8 June 2019

Copperhead
b2o2b2o$3b2o$3b2o$obo2bobo$o6bo2$o6bo$b2o2b2o$2b4o2$3b2o$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ TRACKLOOP 10 0 -1/10 THUMBSIZE 3 GPS 5 HEIGHT 800 WIDTH 483 ]]
View animated image
View static image
Pattern type Spaceship
Number of cells 28
Bounding box 6 × 12
Direction Orthogonal
Period 10
Mod 10
Speed c/10 | c/10
Heat 27.8
Discovered by zdr
Year of discovery 2016

Copperhead is a c/10 orthogonal spaceship discovered by "zdr" on March 5, 2016 using a modified version of gfind known as zfind.[1] It was the first spaceship of this speed to be discovered, and surprised many due to its small size and high period.

Reactions

The ship hauls a block behind it, which makes for interesting reactions involving other ships. Dean Hickerson built a sawtooth, that uses copperhead's ability to turn a heavyweight spaceship into a loaf.[2] It can also eat gliders and middleweight spaceships cleanly from behind, and lightweight spaceships from the side of the block. Its front end can cleanly burn through blinkers, creating a c/10 blinker fuse.

Fireship

Main article: Fireship

Simon Ekström found what appeared to be a tagalong with a large spark on March 20, 2016.[3] Unlike most tagalongs, this tagalong actually temporarily interacts with the hauled block, and is thus not a true tagalong but a whole new spaceship, named fireship due to its unusual spark.[4] However, blocks hauled by the tagalongs in tagalong pyramids are unaffected, and are thus true tagalongs.

A 2c/20 tagalong for the fireship is also known, discovered by christoph.r on October 11, 2018.[5]

Cottonmouth

Main article: Cottonmouth

A true pushalong known as the cottonmouth was found by AforAmpere on March 24, 2018 for both the copperhead and the similar fireship. Because its front end matches that of the copperhead, it can be infinitely placed on itself.[6]

Synthesis

The first synthesis was proposed by Aidan F. Pierce on the day of discovery. An alternative synthesis utilising fumarole as a predecessor, presented by Tanner Jacobi an hour later, was much more efficient. After optimizations by Mark Niemiec and Chris Cain the total synthesis cost made 22 gliders. A copperhead gun was then completed by Alexey Nigin on March 6, 2016.[7] A faster gun was constructed one day later.[8]

gmc_nxtman reduced the copperhead's synthesis cost to 14 gliders on July 9, 2017;[9] 2718281828 posted a 13-glider synthesis on January 9, 2018.[10]

Soup search results

The first copperhead to emerge from the ash of a soup appeared on April 4, 2016 in a D2_+2 haul submitted to Catagolue by Apple Bottom.[11] Several more copperheads have since been found in this and other related symmetries. It is the first and currently only spaceship with a non-standard speed to appear in a symmetric soup search.

Naming

Various names were proposed on the day of the ship's discovery; for example copperhead, blockhauler, decapod, cuttlefish and blockfish. zdr settled on copperhead.[12]

Gallery

A simple copperhead eater found by Simon Ekström.
View animated image
The phase the copperhead was first found in.

In other rules

DryLife's goldenhead.

In the cellular automaton DryLife, an extremely similar spaceship (dubbed the goldenhead) also travels at c/10 orthogonal. It differs from the normal copperhead by 2 cells in one phase. A normal copperhead at this phase will turn into a goldenhead in DryLife, and conversely this phase will return to a copperhead in normal Life.

See also

References

  1. ↑ zdr (March 5, 2016). "is this c/10 spaceship known?". Retrieved on March 5, 2016.
  2. ↑ Dean Hickerson (6 March, 2016). "Re: is this c/10 spaceship known?".
  3. ↑ Simon Ekström (March 20, 2016). "Re: is this c/10 spaceship known?". Retrieved on March 20, 2016.
  4. ↑ towerator (20 March 2016). "Re: is this c/10 spaceship known?". Retrieved on 30 June 2016.
  5. ↑ christoph.r (October 11, 2018). "Re: Thread for your unsure discoveries". Retrieved on November 30, 2018.
  6. ↑ AforAmpere (March 24, 2018). "Re: Spaceship Discussion Thread". Retrieved on August 30, 2018.
  7. ↑ Alexey Nigin (March 6, 2016). "Re: is this c/10 spaceship known?". Retrieved on March 6, 2016.
  8. ↑ gmc_nxtman (7 March, 2016). "Re: is this c/10 spaceship known?". Retrieved on 8 March, 2016.
  9. ↑ gmc_nxtman (July 9, 2017). "Re: is this c/10 spaceship known?". Retrieved on July 9, 2017.
  10. ↑ 2718281828 (January 9, 2018). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  11. ↑ Apple Bottom (April 4, 2016). "Haul". Catagolue. Retrieved on April 4, 2016.
  12. ↑ zdr (6 March 2016). "Re: is this c/10 spaceship known?". Retrieved on 5 July 2016.

External links


Retrieved from "https://conwaylife.com/w/index.php?title=Copperhead&oldid=61537"