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.
Among the 121 still lifes with 12 cells, this is the 53rd most common still life according to Catagolue.
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
- Cis-barge with nine at Adam P. Goucher's Catagolue
- The 121 twelve-bit still-lifes at Mark D. Niemiec's Life Page (12.72)
- 12.49 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- 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