Egyptian walk
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Egyptian walk | |||||||||
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Pattern type | Strict still life | ||||||||
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Number of cells | 12 | ||||||||
Bounding box | 7 × 4 | ||||||||
Frequency class | 35.3 | ||||||||
Discovered by | Robert Wainwright Everett Boyer | ||||||||
Year of discovery | 1973 | ||||||||
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Egyptian walk is a 12-cell still life.
Construction
This still life is known to be constructible with 6 gliders.[1] A 6-glider synthesis was found by Chris Cain on March 13, 2015 based on a suggested predecessor from Matthias Merzenich.[2] Some known syntheses can be found in Mark Niemiec's database.[3]
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Occurrence
Among the 121 still lifes with 12 cells, this is the 114th most common (i.e. 8th rarest) still life according to Catagolue.
There are no occurrences of this still life in final patterns of collisions in octohash, octo3obj or octo3g databases.
See also
- Amphisbaena
- Big S
- Cis-snake-tie
- Integral sign
- Snake bridge snake
- Snake siamese snake
- Trans-snake-tie
References
- ↑ 1.0 1.1 xs12_321f84c at Adam P. Goucher's Catagolue
- ↑ 2.0 2.1 Chris Cain (March 13, 2015). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ 3.0 3.1 The 121 twelve-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 12/12-117.rle)
External links
- Egyptian walk at Adam P. Goucher's Catagolue
- 12.85 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Patterns with Catagolue frequency class 35
- 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 6 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 12 cells
- Patterns with 180-degree rotation symmetry