Cis-very long hook with nine

Cis-very long hook with nine
x = 7, y = 5, rule = B3/S23 3bo$2bobo$bo2bo$o3bobo$2o3b2o! #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	32.1
Static symmetry	Unspecified
Discovered by	Unknown
Year of discovery	Unknown
Rules Outer-totalistic rules B/S23 – B3678/S012345678 # of rules 211 = 2048 Isotropic rules B/S23n – B2ikn34-jnr5-q678/S012345678
Glider synthesis Fewest gliders 7 Catagolue-generated RLE synthesis
Pattern files Plaintext cisverylonghookwithnine.cells RLE cisverylonghookwithnine.rle
Identifiers apgcode xs12_31eg853 Niemiec ID 12.41 Pentadecathlon ID 12.22

Cis-very long hook with nine is a 12-cell still life.

This still life is comprised of the normally unstable very long hook with a normally unstable nine attached. This is one of two possible isomers, named cis due to the corner part of the hook being closer to the nine; the other isomer, trans-very long hook with nine, has this corner part slightly farther.

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

Commonness

Among still lifes with 12 cells, this is the 87th most common still life according to Catagolue. Its position among all still lifes of all populations as a whole, however, is currently unknown.

Glider synthesis

A 7-glider synthesis of this still life was found in March 2021.

External links

• Cis-very long hook with nine at Adam P. Goucher's Catagolue

• 12.41 at Mark D. Niemiec's Life Page

• 12.22 at Heinrich Koenig's Game of Life Object Catalogs