Broken snake

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Broken snake
x = 7, y = 3, rule = B3/S23 5b2o$ob2o2bo$2ob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]] #C [[ ZOOM 60 ]]
Pattern type Strict still life
Number of cells 10
Bounding box 7 × 3
Frequency class 19.8
Static symmetry n (C1)
Discovered by Unknown
Year of discovery 1972

Broken snake (or carrier siamese snake) is a 10-cell still life that consists of an aircraft carrier and a snake attached together.

Occurrence

See also: List of common still lifes, Most common objects on Catagolue

Broken snake is the fifty-fourth most common still life in Achim Flammenkamp's census, being less common than mirrored dock but more common than trans-bookend and bun.[1]

It is the 55th most common still life on Adam P. Goucher's Catagolue, being less common than prodigal but more common than trans-bookend and bun. It is the 8th most common still life with 10 cells, being less common than prodigal but more common than boat with long tail.[2]

Broken snake typically forms via a century hitting a block or other object in the same position. (The upper block is there to prevent a glider from crashing onto the broken snake, but many other perturbations work.)

x = 14, y = 17, rule = B3/S23 2o$2o5$12b2o$12b2o6$4b3o$4bo$4b2obo$6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 20 THUMBSIZE 2 ZOOM 10 Y 5 AUTOSTART T 0 PAUSE 2 LOOP 140 ]]
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The broken snake is 40% rarer in an 8 × 8 soup and 20% rarer in a 10 × 10 soup compared to Catagolue's typical 16 × 16 soups. In infinite soups, it is 24% more common. This is likely because the base century+object collision (shown above) only forms the broken snake temporarily, and a larger soup allows for other cells to interfere and allow the broken snake to survive.

Glider synthesis

Main article: Glider synthesis

All strict still lifes with a population of 23 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 35 or fewer cells are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.

See also

References

  1. ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on November 8, 2009.
  2. ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on May 5, 2023.