Ship
| Ship | |||||||||||
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| Pattern type | Strict still life | ||||||||||
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| Number of cells | 6 | ||||||||||
| Bounding box | 3×3 | ||||||||||
| Frequency class | 3.3 | ||||||||||
| Discovered by | JHC group | ||||||||||
| Year of discovery | 1970 | ||||||||||
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- For the class of patterns sometimes called ships, see spaceship.
Ship is a 6-bit still life. It was discovered by the JHC group in 1970.[1] It is the smallest pattern that is a still life under the standard Life rules but not in HighLife.
Adding one cell to the corner of the ship will turn it into a fleet. Removing one of the corner cells results in a boat, while removing both results in a tub. Like the tub and the boat, it is infinitely extensible (see long ship).
Ship can act as an eater, eating one half of a traffic light.
Commonness
The ship is the seventh most common still life in Achim Flammenkamp's census, being less common than pond and more common than long boat.[2] It is also the seventh most common object on Adam P. Goucher's Catagolue. It is the second most common 6-bit still life, being less common than the beehive but more common than the barge.[3] It is the most common object in Catagolue for which no 2-glider synthesis is known.
See also
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on June 18, 2009.
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on April 14, 2009.
- ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
External links
- Ship at the Life Lexicon
- Ship at Adam P. Goucher's Catagolue
- The 5 six-bit still-lifes at Mark D. Niemiec's Life Page
| Vessels | |
|---|---|
| No corners (barges) | (^-2) • (^-1) • ^0 • ^1 • ^2 • ^3 |
| One corner (boats) | (^-2) • (^-1) • ^0 • ^1 • ^2 • ^3 |
| Two corners (ships) | (^-1) • ^0 • ^1 • ^2 • ^3 |
- Patterns
- Patterns with Catagolue frequency class 3.3
- Natural periodic objects
- Patterns with 6 cells
- Patterns found by JHC group
- Patterns found in 1970
- Patterns that can be constructed with 3 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 6 cells
- Periodic objects with minimum population 6
- Patterns with rectangular diagonal symmetry
- Diagonal line stabilisations
