Block on dock

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Block on dock
x = 6, y = 6, rule = B3/S23 2o$obob2o$2bob2o$2bo$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]] #C [[ ZOOM 42 ]]
Pattern type Strict still life
Number of cells 14
Bounding box 6 × 6
Frequency class 17.5
Discovered by Unknown
Year of discovery Unknown

Block on dock is (as its name suggests) a still life made up of a block and dock.

Occurrence

See also: List of common still lifes

Block on dock is the thirty-fifth most common still life in Achim Flammenkamp's census, being less common than block on table but more common than twin hat.[1]

It is the 37th most common still life on Adam P. Goucher's Catagolue, being less common than block on table but more common than scorpion. It is the 5th most common still life with 14 cells, being less common than cis-mirrored bun but more common than fourteener.[2]

There are two common ways for block on dock to form. One is for an active reaction to hit a loaf, causing it to expand but being inducted on one side, which eventually becomes the block. Two example reactions are shown below. On the right of the example is the other common way for it to form; it is a 9-cell predecessor, although sometimes the active reaction joins the sequence one or two generations later.

x = 36, y = 15, rule = B3/S23 6b2o$5bo3bo$b2o2bo4bo$o2b4o2bo$bobo3b2o$2bo2$32b3o$32bobo$9bo$6b3o25bo $b2o2bo28b2o$o2b3o27bo$bobo2bo$2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 8 AUTOSTART T 0 PAUSE 3 LOOP 30 ]]
Three common ways for block on dock to form
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RLE: here Plaintext: here

Glider synthesis

All strict still lifes with a population of 21 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 31 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 March 30, 2010.
  2. Adam P. Goucher. "Statistics". Catagolue. Retrieved on May 5, 2023.

External links