Difference between revisions of "Two blockers hassling R-pentomino"

From LifeWiki
Jump to navigation Jump to search
(infobox)
m (templatified links)
(18 intermediate revisions by 7 users not shown)
Line 1: Line 1:
{{Oscillator
{{Oscillator
|name         = 47P72
|name             = Two blockers hassling R-pentomino
|pname       = 47p72
|pname           = twoblockershasslingrpentomino
|c           = 47
|c               = 47
|bx           = 30
|bx               = 30
|by           = 19
|by               = 19
|p           = 72
|p               = 72
|h           = 34.1
|m                = 36
|v           = 0.97
|h               = 34.1
|discoverer   = Robert Wainwright
|v               = 0.97
|discoveryear = 1990
|sv              = 0.70
|rulemin     = B3/S23
|discoverer       = Robert Wainwright
|rulemax      = B38/S23
|discoveryear     = 1990
|synthesis   = 19
|rulemin         = B3/S23
|synthesisRLE = true
|rulemax         = B38/S23
|life105      = true
|rulespecial     = [[Conway's Game of Life|Conway Life]]
|life106      = true
|isorulemin      = B3/S23
|plaintext    = true
|isorulemax      = B34e6c8/S234ce5a6ein7e
|rle          = true
|synthesis       = 17
|animated    = yes
|synthesisRLE     = true
|plaintext        = true
|rle              = true
|apgcode          = xp72_66625dw66y66664abw66zy3ccy8cczyd6995
|pentadecathlonid = 47P72.1
|animated         = yes
|viewerconfig     = #C [[ GPS 8 ZOOM 12 LOOP 72 ]]
}}
}}
'''47P72''' (or '''two blockers hassling R-pentomino'''<ref>{{Cite web|url=http://home.interserv.com/~mniemiec/oscillat.htm#p72|title=Life Oscillators and Pseudo-Oscillators|author=Mark D. Niemiec|accessdate=July 5, 2009}}</ref>) is a [[period]] [[:Category:Oscillators with period 72|72]] [[oscillator]]. It was the first period 72 oscillator to be found,<ref>[[Dean Hickerson]]'s ''DRH-oscillators.rle'' oscillator collection, retrieved on May 15, 2009</ref> and was discovered by [[Robert Wainwright]] in July [[:Category:Patterns found in 1990|1990]]. In terms of its 47 [[cell]]s, it is also the smallest known period 72 oscillator.
'''Two blockers hassling R-pentomino'''<ref>{{Cite web|url=http://conwaylife.com/ref/mniemiec/period.htm#p72|title=Life Oscillators and Pseudo-Oscillators|author=Mark D. Niemiec|accessdate=December 9, 2018}}</ref> is a {{period|72}} [[oscillator]]. It was the first period 72 oscillator to be found,<ref>[[Dean Hickerson]]'s ''DRH-oscillators.rle'' oscillator collection, retrieved on May 15, 2009</ref> and was discovered by [[Robert Wainwright]] in July {{year|1990}}.


It is made up of two [[blocker]]s that are [[hassle|hassling]] two [[block]]s and an [[R-pentomino]]. It makes appearances in many large [[gun]]s such as the [[gunstar]]s and [[new gun 2]].
It is made up of two [[blocker]]s that [[hassle]] two [[block]]s and an [[R-pentomino]]. It makes appearances in many large [[gun]]s such as the [[gunstar]]s and [[new gun 2]]. On January 12, 2016 [[Tanner Jacobi]] found a way to replace the blockers with [[still life]]s.<ref>{{Cite web|url=http://conwaylife.com/forums/viewtopic.php?f=2&t=1599&start=750#p26652|title=Re: The Hunting of the New Herschel Conduits|author=Tanner Jacobi|accessdate=December 9, 2018}}</ref>
{{EmbedViewer
|pname        = 60p72
|viewerconfig = #C [[ THUMBNAIL THUMBSIZE 2 HEIGHT 360 THEME 6 GPS 36 LOOP 72 ZOOM 10 AUTOSTART ]]
|position    = center
|caption      = Still life-supported oscillator by Tanner Jacobi
}}


==References==
==References==
Line 29: Line 41:
== External links ==
== External links ==
{{LinkCatagolue|xp72_66625dw66y66664abw66zy3ccy8cczyd6995}}
{{LinkCatagolue|xp72_66625dw66y66664abw66zy3ccy8cczyd6995}}
{{LinkPentadecathlonObject|47P72.1}}


{{Symmetry|osc=flip}}
{{Symmetry|osc=flip}}

Revision as of 22:28, 28 December 2019

Two blockers hassling R-pentomino
x = 30, y = 14, rule = B3/S23 4b2o19bo$4o4b2o10b3ob2o2b2o$3ob2o2b2o10b4o4b2o$5bo18b2o4$7b2o12b2o$7b2o12b2o 2$18b3o$17bo$17bo2bo$18b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 8 ZOOM 12 LOOP 72 ]]
View animated image
View static image
Pattern type Oscillator
Number of cells 47
Bounding box 30 × 19
Period 72
Mod 36
Heat 34.1
Volatility 0.97
Strict volatility 0.70
Discovered by Robert Wainwright
Year of discovery 1990

Two blockers hassling R-pentomino[1] is a period-72 oscillator. It was the first period 72 oscillator to be found,[2] and was discovered by Robert Wainwright in July 1990.

It is made up of two blockers that hassle two blocks and an R-pentomino. It makes appearances in many large guns such as the gunstars and new gun 2. On January 12, 2016 Tanner Jacobi found a way to replace the blockers with still lifes.[3]

x = 26, y = 20, rule = B3/S23 o24bo$3o20b3o$3bo18bo$2b2o18b2o3$19bo$19b2o$9b2o9bo$8b2o9bo$8bo8bobo$ 9bo7bobo$5b2o11bo$5b2o3$7b2o8b2o$3b2obobo8bobob2o$3bob2obobo4bobob2obo $9b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 2 HEIGHT 360 THEME 6 GPS 36 LOOP 72 ZOOM 10 AUTOSTART ]]
Still life-supported oscillator by Tanner Jacobi
(click above to open LifeViewer)
RLE: here Plaintext: here

References

  1. ↑ Mark D. Niemiec. "Life Oscillators and Pseudo-Oscillators". Retrieved on December 9, 2018.
  2. ↑ Dean Hickerson's DRH-oscillators.rle oscillator collection, retrieved on May 15, 2009
  3. ↑ Tanner Jacobi. "Re: The Hunting of the New Herschel Conduits". Retrieved on December 9, 2018.

External links

Retrieved from "https://conwaylife.com/w/index.php?title=Two_blockers_hassling_R-pentomino&oldid=67221"