Trans-boat with long³ tail

Trans-boat with 3 tail
x = 4, y = 8, rule = B3/S23 2o$obo$bobo$3bo$2bo$bo$o$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	12
Bounding box	8 × 4
Frequency class	27.8
Static symmetry	Unspecified
Discovered by	Robert Wainwright Everett Boyer
Year of discovery	1973
Rules Outer-totalistic rules B/S23 – B3678/S012345678 # of rules 211 = 2048 Isotropic rules B/S2-i3cn – B2in34-jkr5-c678/S012345678
Glider synthesis Fewest gliders 5 Catagolue-generated RLE synthesis
Pattern files Plaintext transboatwithlong3tail.cells RLE transboatwithlong3tail.rle
Identifiers apgcode xs12_35icz65 Niemiec ID 12.53 Pentadecathlon ID 12.29

Trans-boat with long³ tail is a 12-cell still life.

This still life is comprised of the normally stable boat with a normally unstable long³ tail attached. While it technically has no isomers, it is named trans due to the corner part of the tail being farther from the boat; the other "isomer", cis-boat with long³ tail, has this corner part slightly closer.

Unlike the cis-version, the trans-boat with long³ tail can be shrunk down to three smaller still lifes: the boat with very long tail, boat with long tail and boat with tail. Due to the trans version being the only one which can be shrunk, these three do not have cis-trans prefixes.

Commonness

Among the 121 still lifes with 12 cells, this is the 43rd most common still life according to Catagolue.

Glider synthesis

A 6-glider synthesis for this still life was found in July 2020. It has since been reduced to 5 gliders (see the synthesis in the infobox).

External links

• Trans-boat with long³ tail at Adam P. Goucher's Catagolue
• The 121 twelve-bit still-lifes at Mark D. Niemiec's Life Page (12.53)
• 12.29 at Heinrich Koenig's Game of Life Object Catalogs