Cis-barge with nine
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| Cis-barge with nine | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 12 | ||||||||
| Bounding box | 7 × 6 | ||||||||
| Frequency class | 28.8 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Robert Wainwright Everett Boyer | ||||||||
| Year of discovery | 1973 | ||||||||
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Cis-barge with nine is a 12-cell still life.
This still life is comprised of the normally stable barge with a normally unstable nine attached. This is one of two possible isomers, named cis due to the far end of the barge being closer to the nine; the other isomer, trans-barge with nine, has the far end facing outwards.
It can be substitutively referred to as the integral with cis-barge, with one pre-block of the integral sign replaced with a barge, however "cis-barge with nine" is usually preferred for this object.
Commonness
Among the 121 still lifes with 12 cells, this is the 53rd most common still life according to Catagolue.
Glider synthesis
A 5-glider synthesis of this still life was found in January 2020.[1]
See also
References
- ↑ Ian07 (January 31, 2020). Re: Randomly enumerating glider syntheses (discussion thread) at the ConwayLife.com forums
External links
- 12.72 at Mark D. Niemiec's Life Page
- 12.49 at Heinrich Koenig's Game of Life Object Catalogs
- Patterns
- Patterns with Catagolue frequency class 28
- Natural periodic objects
- Periodic objects with minimum population 12
- Patterns with 12 cells
- Patterns found by Robert Wainwright
- Patterns found by Everett Boyer
- Patterns found in 1973
- Patterns that can be constructed with 5 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 12 cells