Long ship
| Long ship | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 8 | ||||||||
| Bounding box | 4 × 4 | ||||||||
| Frequency class | 13.3 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | JHC group | ||||||||
| Year of discovery | 1970 | ||||||||
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Long ship is an 8-cell still life discovered by the JHC group in 1970[1] and is a longer version of the ship. Unlike the regular ship, this survives in HighLife.
Long ship is the smallest still life by bounding box for which there is no clean one-glider destruction. In terms of population it ties with canoe.[2]
Commonness
Long ship is the seventeenth most common still life in Achim Flammenkamp's census, being less common than paperclip but more common than shillelagh.[3] It is also the twenty-fourth most common object on Adam P. Goucher's Catagolue.[4]
A long ship can be created when a traffic light predecessor hits a tub. By itself, it does not survive long, but it can survive in a soup if there are nearby active regions.
| The reaction described above (click above to open LifeViewer) RLE: here Plaintext: here |
Glider synthesis
All strict still lifes with a population of 22 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 31 or fewer cells are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on June 18, 2009.
- ↑ gameoflifeboy (November 6, 2015). Re: Gustavo Ramos Rehermann's patterns (discussion thread) at the ConwayLife.com forums
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
External links
- Long ship at the Life Lexicon
- The 9 eight-bit still-lifes at Mark D. Niemiec's Life Page
| Vessels | |
|---|---|
| No corners (barges) | (^-2) • (^-1) • ^0 • ^1 • ^2 • ^3 |
| One corner (boats) | (^-2) • (^-1) • ^0 • ^1 • ^2 • ^3 |
| Two corners (ships) | (^-1) • ^0 • ^1 • ^2 • ^3 |
- Patterns
- Patterns with Catagolue frequency class 13
- Natural periodic objects
- Periodic objects with minimum population 8
- Patterns with 8 cells
- Patterns found by JHC group
- Patterns found in 1970
- Patterns that can be constructed with 4 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 8 cells
- Patterns with rectangular diagonal symmetry