Difference between revisions of "Sir Robin"
Apple Bottom (talk | contribs) (Josh Ball's partial) |
(Apple Bottom, that 87-glider synthesis was *fake*. It's a cleverly-constructed LifeViewer loop. It doesn't actually produce this ship.) |
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Revision as of 23:41, 1 April 2018
| Sir Robin | |||||||||
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| 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 |
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.
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
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