Cis-boat with long³ tail

Cis-boat with long3 tail
x = 5, y = 7, rule = B3/S23 b2o$bobo$2bobo$4bo$3bo$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	12
Bounding box	7 × 5
Frequency class	29.8
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 cisboatwithlong3tail.cells RLE cisboatwithlong3tail.rle
Identifiers apgcode xs12_358gka6 Niemiec ID 12.54 Pentadecathlon ID 12.68

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

Construction

This still life is known to be constructible with 5 gliders. Some alternate syntheses can be found in Mark Niemiec's database.

x = 30, y = 24, rule = B3/S23 14bobo$14b2o$15bo3$21bo$16bo3bo$15bo4b3o5b2o$15b3o9bobo$26bo$25bo$25bo bo$26bobo$27b2o2$bo$b2o$obo4$7b3o$9bo$8bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book ZOOM 10 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 35 PAUSE 2 LOOP 36 ]] A 5G synthesis (click above to open LifeViewer)

x = 31, y = 33, rule = B3/S23 16bo$16bobo$16b2o$24bobo$24b2o$25bo2$17bobo$17b2o10b2o$18bo9bobo$27bo$ 26bo$26bobo$27bobo$28b2o3$b2o$obo$2bo2$20b3o$20bo$21bo7$23b2o$22b2o$24bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 400 THEME Book ZOOM 10 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 33 PAUSE 1 T 53 PAUSE 1 T 59 PAUSE 2 LOOP 60 ]] A 6G synthesis (click above to open LifeViewer)

x = 36, y = 39, rule = B3/S23 23bo5bo4bo$23bobob2o4bo$23b2o3b2o3b3o2$19bo$18bo$18b3o2$o$b2o$2o$5bo$ 6bo$4b3o$19bo$18bo$18b3o3$32b2o$31bobo$30bo$29bo$29bobo$30bobo$31b2o4$ 23b2o$22b2o$24bo5$29b3o$29bo$30bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 400 THEME Book ZOOM 10 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 40 PAUSE 1 T 70 PAUSE 2 LOOP 71 ]] A 9G synthesis (click above to open LifeViewer)

Occurrence

See also: List of common still lifes

Among the 121 still lifes with 12 cells, this is the 65th most common still life according to Catagolue.

There are no collisions in octohash, octo3obj or octo3g databases with this still life occurring in the ash.

Isomers

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 cis due to the corner part of the tail being closer to the boat; the other "isomer", trans-boat with long³ tail, has this corner part slightly farther.

Unlike the trans-version, the cis-boat with long³ tail is the smallest way in which a boat can have a tail of a given length attached to it in cis orientation - shrinking the length of the tail would result in unwanted births and as such the configuration would no longer be a still life.

External links

• Cis-boat with long³ tail at Adam P. Goucher's Catagolue
• 12.68 at Heinrich Koenig's Game of Life Object Catalogs