Bookend bridge bookend
Bookend bridge bookend | |||||||||
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Pattern type | Strict still life | ||||||||
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Number of cells | 14 | ||||||||
Bounding box | 6 × 6 | ||||||||
Frequency class | 28.9 | ||||||||
Static symmetry | .k (C2_4) | ||||||||
Discovered by | Unknown | ||||||||
Year of discovery | Unknown | ||||||||
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Bookend bridge bookend is a 14-cell strict still life consisting of two mutually stabilising bookends. It is one of six ways in which two bookends can be arranged to create a still life, and the only one which only has a single island.
It can occur from a rotationally-symmetric collision of two lightweight spaceships, shown below.
The collision described above (click above to open LifeViewer) |
Occurrence
- See also: List of common still lifes
Bookend bridge bookend is currently the 603rd most common object on Adam P. Goucher's Catagolue, being less common than the unnamed still life xs19_69mgmiczw66, but more common than the unnamed still life xs15_j5q8a6z11.
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.
External links
- 14.561 at Heinrich Koenig's Game of Life Object Catalogs
- Bookend bridge bookend at Adam P. Goucher's Catagolue