Ship-tie
| Ship-tie | |||||||||||
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| Pattern type | Strict still life | ||||||||||
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| Number of cells | 12 | ||||||||||
| Bounding box | 6×6 | ||||||||||
| Frequency class | 7.6 | ||||||||||
| Discovered by | Unknown | ||||||||||
| Year of discovery | Unknown | ||||||||||
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Ship-tie (or half-fleet) is a 12-cell still life. Its name is derived from boat-tie.
Commonness
- Main article: List of common still lifes
Ship-tie is the ninth most common still life on Adam P. Goucher's Catagolue, being less common than long boat but more common than barge. Among all still lifes with 12 cells, it is the absolute most common, followed by mirrored table.[1] It is also the twelfth most common object overall on Catagolue, and is the most common object for which there exists no 3-glider synthesis.
In Achim Flammenkamp's census, the ship-tie was also ranked ninth most common, again between the long boat and barge.[2]
Compared to Catagolue's typical 16×16 soups, the ship-tie is 13% more common in 8×8 soups and 8% more common in 10×10 soups. This is because fleets take up a lot of room, and if it's the only constellation in the universe, it won't hit anything else that will destroy it.
Occurrence
Ship-ties are almost always born in pairs, forming the fleet constellation:
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Glider synthesis
| Selected 2-stage 4-glider syntheses of a ship-tie (click above to open LifeViewer) RLE: here Plaintext: here |
There are lots of 3-glider collisions that produce a ship-tie as well as junks that can be removed with another glider. Other 4-glider collisions that make a clean ship-tie are also known.
See also
References
- ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on July 5, 2022.
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on November 8, 2009.
External links
- Ship-tie at the Life Lexicon
- Ship-tie at Adam P. Goucher's Catagolue
- 12.3 at Mark D. Niemiec's Life Page
- 12.41 at Heinrich Koenig's Game of Life Object Catalogs