Long canoe

Long canoe
x = 6, y = 6, rule = B3/S23 4b2o$5bo$4bo$3bo$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]] [[ ZOOM 42 ]]
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Pattern type	Strict still life
Number of cells	9
Bounding box	6 × 6
Frequency class	20.8
Static symmetry	/ (D2_x)
Discovered by	Unknown
Year of discovery	1971
Rules Outer-totalistic rules B/S23 – B35678/S012345678 # of rules 212 = 4096 Isotropic rules B/S2aen3n – B2ikn34-r5678/S012345678
Glider synthesis Fewest gliders 4 Catagolue-generated RLE synthesis Uploaded synthesis RLE longcanoe_synth.rle
Pattern files Plaintext longcanoe.cells RLE longcanoe.rle
Identifiers apgcode xs9_g0g853z11 Niemiec ID 9.3 Pentadecathlon ID 9.7

Long canoe (or long sinking ship) is a 9-cell still life, the first extension of canoe. It was found in 1971.

Occurrence

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

Long canoe is the seventy-seventh most common still life in Achim Flammenkamp's census, being less common than trans-rotated bun, but more common than trans-boat on dock.

It is the 71st most common still life on Adam P. Goucher's Catagolue, being less common than loaf siamese loaf but more common than eleven loop. It is the 8th most common still life with 9 cells, being less common than tub with long tail but more than 4 times as common as long hook with tail.

Glider synthesis

Main article: 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 canoe at the Life Lexicon
• Long canoe at Adam P. Goucher's Catagolue
• The 10 nine-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 0/9-3.rle)
• 9.7 at Heinrich Koenig's Game of Life Object Catalogs