Very long boat

Very long boat
x = 5, y = 5, rule = B3/S23 3bo$2bobo$bobo$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]]
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Pattern type	Strict still life
Number of cells	9
Bounding box	5 × 5
Frequency class	15.7
Static symmetry	Unspecified
Discovered by	Unknown
Year of discovery	1971
Rules Outer-totalistic rules B/S23 – B3678/S012345678 # of rules 211 = 2048 Isotropic rules B/S2ce3cn – B2-ae34-e5-c678/S012345678
Glider synthesis Fewest gliders 3 Catagolue-generated RLE synthesis Uploaded synthesis RLE verylongboat_synth.rle
Pattern files Plaintext verylongboat.cells RLE verylongboat.rle
Identifiers apgcode xs9_25ako Niemiec ID 9.1 Pentadecathlon ID 9.3

Very long boat (or long² boat) is the long long version of the boat. When combined with a block, it can be used as a one-time splitter that turns one glider into three. It was found in 1971.

x = 8, y = 13, rule = B3/S23 o$b2o$2o$6b2o$6b2o4$3b2o$2bobo$bobo$obo$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

A glider splitter consisting of a very long boat and a block (click above to open LifeViewer) RLE: here Plaintext: here

Commonness

Very long boat is the twenty-seventh most common still life in Achim Flammenkamp's census, being less common than boat tie ship but more common than tub with tail. It is also the thirty-sixth most common object on Adam P. Goucher's Catagolue. It is the rarest still life with a 3-glider synthesis, although the pentadecathlon is even rarer.

Glider synthesis

All strict still lifes with a population of 22 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.

External links

• Long long boat at the Life Lexicon

• Very long boat at Adam P. Goucher's Catagolue

• The 10 nine-bit still-lifes at Mark D. Niemiec's Life Page