Cis-boat on cap
| Cis-boat on cap | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 13 | ||||||||
| Bounding box | 7 × 4 | ||||||||
| Frequency class | 21.7 | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | Unknown | ||||||||
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Cis-boat on cap is a 13-cell still life.
Construction
On April 3, 2007, Dean Hickerson found a 4-glider synthesis of this still life.[1]
| A 4G synthesis[1][2] (click above to open LifeViewer) |
| A 5G synthesis[2] (click above to open LifeViewer) |
Occurrence
- See also: List of common still lifes
It is the 91st most common still life on Adam P. Goucher's Catagolue, being less common than long boat tie ship but more common than beehive with hooked tail. It is the 5th most common still life with 13 cells, being less common than long boat tie ship but more common than tapeworm.[3]
This still life occurs in final patterns of five collisions in the octo3obj database.[4]
Isomers
This still life is comprised of the normally stable boat acting to stabilise the normally unstable cap, an induction coil. This is one of two possible isomers, named cis due to the boat not extending past the side of the table; the other isomer, trans-boat on cap, extends out by an extra cell.
References
- ↑ 1.0 1.1 2, 3, and 4-glider syntheses at Dean Hickerson's Life page
- ↑ 2.0 2.1 The 240 thirteen-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 13/13-33.rle)
- ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on May 4, 2023.
- ↑ Two collisions (2ob2o3b2o$2ob2o3b2o3$9b2o$9b2o4$4b3o2$7b3o$7bo$8bo! and b2o3b2ob2o$b2o3b2ob2o3$2o$2o4$2b3o2$5b3o$5bo$6bo!) converge to a sequence with 25 escaping gliders and final population 1484. Three other collisions are 2o3bo$2o2bobo2b2o$4bobob2o$5bo4bo$b2o$b2o4bo$7bo$7bo! (1 escaping glider, final population 18), 4b2o$2o2b2o$2o2$9b2o$2o7b2o$2o2b2o$4b2o$7b3o$7bo$8bo! (gliderless, final population 25) and o$o$o$3bo$2bobo$2bobo$3bo3b2o$6bo2bo$2b2o3b2o$2bobo$2bo! (1 escaping glider, final population 48).
External links
- Cis-boat and cap at Adam P. Goucher's Catagolue
- 13.190 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: 13/13-33.rle)