Difference between revisions of "Sir Robin"
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==Tagalongs== | |||
A [[tagalong]] dubbed the '''Minstrel'''{{refn|group=note|"Minstrel", like "Sir Robin", is a reference to Monty Python's movie ''Monty Python and the Holy Grail''.}}, or alternatively '''Minstrel 1''', was discovered by [[Adam P. Goucher]] on July 15, {{year|2018}}, after resuming the original [[ikpx]] search:<ref name="post61918" /> | |||
[[Dave Greene]] modified [[Martin Grant]]'s Sir Robin eater to act as a Minstrel 1 detector/remover the same day.<ref name="post61925" /> | |||
On July 19, {{year|2018}}, [[Adam P. Goucher]] found a second and third minstrel, dubbed '''Minstrel 2''' and '''Minstrel 3''', that follow Sir Robin more closely.<ref name="post62007" /> Shown below are all three minstrels, in order from left to right: | |||
{{EmbedViewer | |||
|pname = minstrels | |||
|position = center | |||
|caption = Minstrel 1 (left), Minstrel 2 (middle), Minstrel 3 (right) | |||
|viewerconfig = #C [[ TRACKLOOP 6 -1/6 -1/3 THUMBSIZE 2 WIDTH 720 HEIGHT 480 ZOOM 4 GPS 12 ]] | |||
}} | |||
On July 21, {{year|2018}}, [[Goldtiger997]] built a [[stable]] circuit that can accept any of the four known knightships, emitting a glider in one of four directions (depending on the input spaceship) along with a Sir Robin travelling along the original path. When the original input is a Sir Robin, this circuit is a [[Heisenburp]]; otherwise, it is a [[downconverter]]. This was later optimised by including a bend in the [[2c/3 signal]] wire. | |||
Sir Robin is also partially capable of supporting [[knightwave]].<ref>http://www.conwaylife.com/forums/viewtopic.php?f=2&t=3303#p57379</ref> | |||
==Notes== | ==Notes== | ||
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|title = Re: Elementary knightship | |title = Re: Elementary knightship | ||
|author = Martin Grant | |author = Martin Grant | ||
}}</ref> | |||
<ref name="post61918">{{LinkForumThread | |||
|format = ref | |||
|p = 61918 | |||
|accessdate = 2018-07-15 | |||
|date = 2018-07-15 | |||
|title = Minstrel | |||
|author = Adam P. Goucher | |||
}}</ref> | |||
<ref name="post61925">{{LinkForumThread | |||
|format = ref | |||
|p = 61925 | |||
|accessdate = 2018-07-15 | |||
|date = 2018-07-15 | |||
|title = Re: Minstrel | |||
|author = Dave Greene | |||
}}</ref> | |||
<ref name="post62007">{{LinkForumThread | |||
|format = ref | |||
|p = 62007 | |||
|accessdate = 2018-07-19 | |||
|date = 2018-07-19 | |||
|title = Re: Minstrel | |||
|author = Adam P. Goucher | |||
}}</ref> | }}</ref> | ||
</references> | </references> | ||
Revision as of 11:31, 17 August 2018
| Sir Robin | |||||||||
| View animated image | |||||||||
| View static image | |||||||||
| Pattern type | Spaceship | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 282 | ||||||||
| Bounding box | 31 × 79 | ||||||||
| Direction | Oblique | ||||||||
| Slope | 2 | ||||||||
| Period | 6 | ||||||||
| Mod | 6 | ||||||||
| Speed | (2,1)c/6 | Unknown | ||||||||
| Heat | 271 | ||||||||
| Discovered by | Adam P. Goucher Tomas Rokicki | ||||||||
| Year of discovery | 2018 | ||||||||
| |||||||||
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Sir Robin[note 1] (also known by its systematic name 282P6H2V1, and alternatively called seahorse) is a (2,1)c/6 spaceship found by Adam P. Goucher on March 6, 2018 using his ikpx search program. It is based on a partial found by Tomas Rokicki, which makes up about 62% of the ship,[1] and which was itself an independent rediscovery of roughly half of a partial found by Josh Ball in April 2017.[2] Sir Robin is the first elementary knightship in Conway's Game of Life.
A scientific paper describing the method used to find the ship is forthcoming.[3]
Partials
Josh Ball's original partial from April 2017 is shown below:
| (click above to open LifeViewer) RLE: here Plaintext: here |
Synthesis
No glider synthesis for Sir Robin exists as of March 10, 2018; finding a synthesis is considered a challenging task at best, due to the large size of the ship, and the amount of space dust it contains.
Reactions
Martin Grant constructed a Sir Robin eater with a repeat time of 557 on March 8, 2018:[4]
| (click above to open LifeViewer) RLE: here Plaintext: here |
Tagalongs
A tagalong dubbed the Minstrel[note 2], or alternatively Minstrel 1, was discovered by Adam P. Goucher on July 15, 2018, after resuming the original ikpx search:[5]
Dave Greene modified Martin Grant's Sir Robin eater to act as a Minstrel 1 detector/remover the same day.[6]
On July 19, 2018, Adam P. Goucher found a second and third minstrel, dubbed Minstrel 2 and Minstrel 3, that follow Sir Robin more closely.[7] Shown below are all three minstrels, in order from left to right:
| Minstrel 1 (left), Minstrel 2 (middle), Minstrel 3 (right) (click above to open LifeViewer) RLE: here Plaintext: here |
On July 21, 2018, Goldtiger997 built a stable circuit that can accept any of the four known knightships, emitting a glider in one of four directions (depending on the input spaceship) along with a Sir Robin travelling along the original path. When the original input is a Sir Robin, this circuit is a Heisenburp; otherwise, it is a downconverter. This was later optimised by including a bend in the 2c/3 signal wire.
Sir Robin is also partially capable of supporting knightwave.[8]
Notes
- ↑ The name is in reference to Sir Robin, the knight who "bravely ran away", from Monty Python's movie Monty Python and the Holy Grail.
- ↑ "Minstrel", like "Sir Robin", is a reference to Monty Python's movie Monty Python and the Holy Grail.
References
- ↑ Adam P. Goucher (2018-03-06). Elementary knightship (discussion thread) at the ConwayLife.com forums
- ↑ Josh Ball (2017-04-08). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Adam P. Goucher (2018-03-07). Re: Elementary knightship (discussion thread) at the ConwayLife.com forums
- ↑ Martin Grant (2018-03-08). Re: Elementary knightship (discussion thread) at the ConwayLife.com forums
- ↑ Adam P. Goucher (2018-07-15). Minstrel (discussion thread) at the ConwayLife.com forums
- ↑ Dave Greene (2018-07-15). Re: Minstrel (discussion thread) at the ConwayLife.com forums
- ↑ Adam P. Goucher (2018-07-19). Re: Minstrel (discussion thread) at the ConwayLife.com forums
- ↑ http://www.conwaylife.com/forums/viewtopic.php?f=2&t=3303#p57379
External links
Articles and announcements
- A rather satisfying winter: cp4space article describing the events leading to the discovery
- b3s23life article announcing the discovery itself
- Elementary Knightship found in Conway's Game of Life on Hacker News
- An elementary knightship has been found in Conway's Game of Life on Reddit
Object catalogues
- Sir Robin at Adam P. Goucher's Catagolue (extended)
Forum threads
- Elementary knightship (discussion thread) at the ConwayLife.com forums
- Synthesizing the elementary knightship (discussion thread) at the ConwayLife.com forums
- What are the odds that Sir Robin will appear naturally? (discussion thread) at the ConwayLife.com forums
Tools
- ikpx on Gitlab
- Patterns
- Spaceships with between 200 and 299 cells
- Periodic objects with minimum population between 200 and 299
- Patterns with between 200 and 299 cells
- Patterns found by Adam P. Goucher
- Patterns found by Tomas Rokicki
- Patterns found in 2018
- Outer-totalistically endemic patterns
- Spaceships
- Spaceships with period 6
- Oblique spaceships
- Spaceships with slope 2
- Spaceships with speed (2,1)c/6
- Spaceships with heat between 200 and 299
- Spaceships with mod 6