Difference between revisions of "P79 pi-heptomino hassler"

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(full (albeit stubby) article)
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{{for|other p79 pi-heptomino hasslers|Period-79 pi-heptomino hasslers}}
{{Oscillator
{{Oscillator
|name        = p79 pi-heptomino hassler
|name        = p79 pi-heptomino hassler
|pname        = p79pihassler
|pname        = p79pihassler
|c            = 86
|c            = 80
|bx          = 28
|bx          = 43
|by          = 43
|by          = 28
|p            = 79
|p            = 79
|m            = 79
|m            = 79
|h            = 45.2
|h            = 45.7
|v            = 0.88
|v            = 0.89
|sv          = 0.89
|symmetry    = .e
|discoverer  = Luke Kiernan
|discoverer  = Luke Kiernan
|discoveryear = 2022
|discoveryear = 2022
Line 17: Line 20:
|isorulemax  = B3/S234c8
|isorulemax  = B3/S234c8
|rle          = true
|rle          = true
|apgcode      = xp79_y232acyac88gz4s0gyi11y8mqzgg11y5goy9re4y432acz1qa6y4136ykc4oz023y8ckggyaggy211zye1ya1226
|plaintext    = true
|viewerconfig = #C [[ GPS 10 ZOOM 6 LOOP 79 ]]
|apgcode      = xp79_y232acydqmz4s0gywmqzgg11y5goy9re4y432acz1qa6y4136ykc4oz023y78oydggy211zya32yd1226
|apgcode2    = xp79_y232acyb62sgz4s0gywmqzgg11y5goy9re4y432acz1qa6y4136ykc4oz023y78oydggy211zyb123yb1226
|synthesis    = 35
|synthesis2  = 31
|viewerconfig = #C [[ GPS 10 ZOOM 8 ]]
}}
}}
'''p79 [[pi-heptomino hassler]]''' is the smallest known {{period|79}} [[oscillator]], found by [[Luke Kiernan]] on September 27, {{year|2022}} using symmetric [[CatForce]]. It is also the first known "interesting" oscillator with this period, with all previous examples using adjustable-period mechanisms.
'''p79 [[pi-heptomino hassler]]''' is the smallest known {{period|79}} [[oscillator]], found by [[Luke Kiernan]] on September 27, {{year|2022}}<ref name="post151393" /><ref name="post151430" /> using symmetric [[CatForce]]. It is also the first known oscillator of this period whose period is not adjustable.


==External links==
A 31-glider synthesis exists for the variant shown below, where the snakes are replaced with fishhooks using the same snake rock reaction.
{{LinkCatagolue|xp79_y232acyac88gz4s0gyi11y8mqzgg11y5goy9re4y432acz1qa6y4136ykc4oz023y8ckggyaggy211zye1ya1226|patternname=p79 pi-heptomino hassler}}
 
{{EmbedViewer
|pname        = p79pihasslervariant
|position    = center
|viewerconfig = #C [[ THUMBSIZE 2 ZOOM 8 GPS 10 AUTOSTART ]]
|caption      = Variant where snakes are replaced with fishhooks
|style        = width:300px;
|apgcode      = xp79_y232acyb62sgz4s0gywmqzgg11y5goy9re4y432acz1qa6y4136ykc4oz023y78oydggy211zyb123yb1226
}}
 
On October 10, {{year|2023}}, [[KtT]] found a {{gliders|43}} synthesis of the canonical form of the oscillator,<ref name="post168903"/><ref name="j5262917597"/> which [[Chris857]] reduced to {{gliders|35|text=35 gliders}} the next day.<ref name="post168937"/><ref name="j5265288819"/>
 
== References ==
<references>
<ref name="j5262917597">{{CiteCatagolueJob|job=5262917597|date=October 10, 2023}}</ref>
<ref name="j5265288819">{{CiteCatagolueJob|job=5265288819|date=October 11, 2023}}</ref>
<ref name="post151393">{{LinkForumThread
|format = ref
|p      = 151393
|title  = Re: Oscillator Discussion Thread
|author = Luke Kiernan
|date  = September 27, 2022
}}</ref>
<ref name="post151430">{{LinkForumThread
|format = ref
|p      = 151430
|title  = Re: Oscillator Discussion Thread
|author = Carson Cheng
|date  = September 27, 2022
}}</ref>
<ref name="post168903">{{LinkForumThread
|format = ref
|p      = 168903
|title  = Re: Synthesising Oscillators
|author = KtT
|date  = October 10, 2023
}}</ref>
<ref name="post168937">{{LinkForumThread
|format = ref
|p      = 168937
|title  = Re: Synthesising Oscillators
|author = Chris857
|date  = October 11, 2023
}}</ref>
</references>
 
== External links ==
* {{LinkCatagolue|xp79_y232acydqmz4s0gywmqzgg11y5goy9re4y432acz1qa6y4136ykc4oz023y78oydggy211zya32yd1226|patternname=p79 pi-heptomino hassler}}


{{Symmetry|180degree}}
{{Sparker|p=79|type=domino|strength=strong}}
{{Sparker|p=79|type=domino|strength=strong}}
[[Category:Pi-heptomino hasslers|079]]
{{DISPLAYTITLE:p79 pi-heptomino hassler}}
{{DISPLAYTITLE:p79 pi-heptomino hassler}}

Latest revision as of 15:51, 2 February 2025

For other p79 pi-heptomino hasslers, see Period-79 pi-heptomino hasslers.
p79 pi-heptomino hassler
x = 43, y = 28, rule = B3/S23 36bo$14b2o18b3o$14bo18bo$15bo17b2o$14b2o2$b2o$2bo38b2o$bo39bo$b2o36bob o$3bo9b2o24b2o$b3o8bobo$o11bo$2o10bobo13b2o$13b2o13bobo10b2o$30bo11bo$ 28bobo8b3o$2b2o24b2o9bo$bobo36b2o$bo39bo$2o38bo$40b2o2$27b2o$8b2o17bo$ 9bo18bo$6b3o18b2o$6bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 10 ZOOM 8 ]]
View static image
Pattern type Oscillator
Number of cells 80
Bounding box 43 × 28
Period 79 (mod: 79)
Heat 45.7
Volatility 0.89 | 0.89
Kinetic symmetry .e
Discovered by Luke Kiernan
Year of discovery 2022

p79 pi-heptomino hassler is the smallest known period-79 oscillator, found by Luke Kiernan on September 27, 2022[1][2] using symmetric CatForce. It is also the first known oscillator of this period whose period is not adjustable.

A 31-glider synthesis exists for the variant shown below, where the snakes are replaced with fishhooks using the same snake rock reaction.

x = 43, y = 28, rule = B3/S23 6bo$6b3o16b2o$9bo15bobo$8b2o17bo$27b2o2$40b2o$2o38bo$bo39bo$bobo36b2o$ 2b2o24bo10bo$27bobo9b3o$30bo11bo$14bo12bobo11b2o$2o11bobo12bo$o11bo$b 3o9bobo$3bo10bo24b2o$b2o36bobo$bo39bo$2bo38b2o$b2o2$14b2o$15bo17b2o$ 15bobo15bo$16b2o16b3o$36bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 10 AUTOSTART ]]
Variant where snakes are replaced with fishhooks
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagolue: here

On October 10, 2023, KtT found a 43-glider synthesis of the canonical form of the oscillator,[3][4] which Chris857 reduced to 35 gliders the next day.[5][6]

References

  1. ↑ Luke Kiernan (September 27, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  2. ↑ Carson Cheng (September 27, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  3. ↑ KtT (October 10, 2023). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  4. ↑ shinjuku (#5262917597) (October 10, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
  5. ↑ Chris857 (October 11, 2023). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  6. ↑ shinjuku (#5265288819) (October 11, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.

External links

Retrieved from "https://conwaylife.com/w/index.php?title=P79_pi-heptomino_hassler&oldid=158388"