Long boat tie ship
| Long boat tie ship | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 13 | ||||||||
| Bounding box | 7 × 7 | ||||||||
| Frequency class | 21.6 | ||||||||
| Static symmetry | / (D2_x) | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | Unknown | ||||||||
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Long boat tie ship is a 13-cell still life.
As its name implies, it involves a long boat having been tied to a ship.
Construction
This still life is known to be constructible with 5 gliders.[1] A 5-glider synthesis was found in 2016.[2]
| A 5G synthesis[2][1] (click above to open LifeViewer) |
| Conversions from boat tie ship (top) and boat tie long boat (bottom)[3] (click above to open LifeViewer) |
Occurrence
- See also: List of common still lifes
Long boat tie ship is the ninety-first most common still life in Achim Flammenkamp's census, being less common than cis-bun and wing but more common than beehive at beehive.[4]
It is the 90th most common still life on Adam P. Goucher's Catagolue, being less common than beehive at beehive but more common than cis-boat on cap. It is the 4th most common still life with 13 cells, being less common than trans-snake on bun but more common than cis-boat on cap.[5] It is also the most common object on Catagolue for which no 4-glider synthesis is known.
This still life occurs in final patterns of three collisions in the octo3obj database.[6]
See also
References
- ↑ 1.0 1.1 xs13_0g8o653z121 at Adam P. Goucher's Catagolue
- ↑ 2.0 2.1 BobShemyakin (October 9, 2016). Re: 4 glider syntheses (discussion thread) at the ConwayLife.com forums
- ↑ The 240 thirteen-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 13/13-10.rle)
- ↑ 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 May 4, 2023.
- ↑ One of three collisions has final population 221 with 8 escaping gliders (headerless RLE: 7b2o$7b2o2$2o5b2o$2o5b2o2$12b2o$b2o2b2ob2ob2o$b2o2b2ob2o3bo!). Two other collisions (5b2ob2o$5b2ob2o4$7b2o$o6b2o$o$o$2b3o$2bo$3bo! and 5b2o$5b2o4$7b2o$o6b2o$o$o$2b3o$2bo$3bo!) converge to a sequence with final population 123 and 3 escaping gliders.
External links
- Long boat tie ship at Adam P. Goucher's Catagolue
- 13.76 at Heinrich Koenig's Game of Life Object Catalogs
- The 240 thirteen-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 13/13-10.rle)