Eater tail tie ship

	Eater tail tie ship
	<a href="/wiki/File:Eatertailtieship.png" class="image" title="Eater tail tie ship image"><img alt="Eater tail tie ship image" src="/w/images/6/6e/Eatertailtieship.png" decoding="async" width="114" height="146" /></a>
	<a href="/wiki/File:Eatertailtieship.png" class="image" title="Eater tail tie ship image"><img alt="Eater tail tie ship image" src="/w/images/6/6e/Eatertailtieship.png" decoding="async" width="114" height="146" /></a>
	View static image
Pattern type	Strict still life
Number of cells	13
Bounding box	5 × 7
Frequency class	25.3
Static symmetry	Unspecified
Discovered by	Unknown
Year of discovery	Unknown
Rules
Outer-totalistic rules	B/S23 – B378/S012345678
# of rules	210 = 1024
Isotropic rules	B/S2aek3knr – B2-ae34-anw5-q6-n78/S012345678
Glider synthesis
Fewest gliders	4
Catagolue-generated RLE	synthesis
Pattern files
Plaintext	eatertailtieship.cells
RLE	eatertailtieship.rle
Identifiers
apgcode	xs13_356o8a6
Niemiec ID	13.11
Pentadecathlon ID	13.71

Eater tail tie ship is a 13-cell still life.

Construction

This still life can be constructed with 4 gliders.^[1] A 4-glider synthesis was found by Deah Hickerson on March 28, 2007.^[2]

x = 38, y = 29, rule = B3/S23
16bo$16bobo$16b2o$2bo$3bo$b3o2$36b2o$35bobo$35b2o$33b2o$34bo$34bobo$
35b2o5$19b2o$19bobo$19bo6$2o$b2o$o!
#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 28 PAUSE 1 T 53 PAUSE 2 LOOP 54 ]]

A 4G synthesis^[2]^[3]
(click above to open LifeViewer)

x = 25, y = 16, rule = B3/S23
2bo$obo10bo$b2o9bo$12b3o6$3bo19b2o$2bobo17bobo$2b2o18b2o$2o18b2o$bo19b
o$bobo17bobo$2b2o18b2o!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
#C [[ THEME Book ZOOM 10 AUTOSTART GPS 12 T 0 PAUSE 1 T 14 PAUSE 3 T 28 PAUSE 2 LOOP 29 ]]

A conversion from boat tie eater tail^[3]
(click above to open LifeViewer)

Occurrence

See also: List of common still lifes, List of still lifes with 13 cells

Eater tail tie ship is the 27th most common 13-cell still life out of 240.

There are no occurrences of this still life in final patterns of collisions catalogued in octohash, octo3obj or octo3g databases.

Isomers

This still life is comprised of the normally stable ship having been tied to the normally stable eater 1. This is one of two possible ties, in which the ship is attached to the "tail" segment of the eater; the other possible version, eater head tie ship, has the ship attached to the "head" segment of the eater instead.

References

↑ xs13_356o8a6 at Adam P. Goucher's Catagolue
↑ ^2.0 ^2.1 2, 3, and 4-glider syntheses at Dean Hickerson's Life page
↑ ^3.0 ^3.1 The 240 thirteen-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 13/13-11.rle)

External links

Eater tail tie ship at Adam P. Goucher's Catagolue
13.71 at Heinrich Koenig's Game of Life Object Catalogs
The 240 thirteen-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 13/13-11.rle)

[catagolue_object-1] xs13_356o8a6 at Adam P. Goucher's Catagolue

[drh_syntheses-2] 2.0 ^2.1 2, 3, and 4-glider syntheses at Dean Hickerson's Life page

[niemiec-3] 3.0 ^3.1 The 240 thirteen-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 13/13-11.rle)

[1]

[2]

[3]