Block on cap
| Block on cap | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 12 | ||||||||
| Bounding box | 4 × 6 | ||||||||
| Frequency class | 19.3 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Robert Wainwright Everett Boyer | ||||||||
| Year of discovery | 1973 | ||||||||
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Block on cap is a 12-cell still life composed of a cap being stabilized by a block.
Commonness
- Main article: List of common still lifes
Block on cap is the forty-eighth most common still life in Achim Flammenkamp's census, being less common than elevener but more common than trans-loaf with tail.[1] It is also the fifty-eighth most common object on Adam P. Goucher's Catagolue.[2]
There are 3 collisions in the octohash database and 35 collisions in the octo3obj database where the final pattern contains a block on cap along with other junk.
Construction
| A 4G synthesis[3] (click above to open LifeViewer) |
The block on cap can be constructed with 4 gliders. A number of known alternate syntheses can be found in Mark Niemiec's database.[4]
See also
References
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
- ↑ 2, 3, and 4-glider syntheses on Dean Hickerson's Life page
- ↑ 12-27.rle at Mark D. Niemiec's Life Page
External links
- Block on cap at Adam P. Goucher's Catagolue
- The 121 twelve-bit still-lifes at Mark D. Niemiec's Life Page (12.27)
- 12.2 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Patterns with Catagolue frequency class 19
- 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 4 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 12 cells