Cis-very long hook with tail

Cis-very long hook with tail
x = 6, y = 5, rule = B3/S23 3bo$2bobo$bo2bo$o3b2o$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	10
Bounding box	5 × 6
Frequency class	27.2
Static symmetry	n (C1)
Discovered by	Unknown
Year of discovery	1972
Rules Outer-totalistic rules B/S23 – B35678/S012345678 # of rules 212 = 4096 Isotropic rules B/S2-i3nr – B2ikn34-ajnr5678/S012345678
Glider synthesis Fewest gliders 5 Catagolue-generated RLE synthesis Uploaded synthesis RLE cisverylonghookwithtail_synth.rle
Pattern files Plaintext cisverylonghookwithtail.cells RLE cisverylonghookwithtail.rle
Identifiers apgcode xs10_2eg853 Niemiec ID 10.16 Pentadecathlon ID 10.13

Cis-very long hook with tail is a 10-cell still life.

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

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

Occurrence

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

It is the third rarest 10-cell still life out of 25. The similar trans-very long hook with tail, also with 10 cells, is about 1.4 times rarer, and the rarest is the long⁴ snake.

Surprisingly, it is about 1.6 times rarer than its one-cell extension, the cis-long³ hook with tail.

Glider synthesis

Main article: Glider synthesis

All strict still lifes with a population of 23 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 35 or fewer cells are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.

See also

• Cis-shillelagh
• Hook with tail family

External links

• Inverted very long hook at Adam P. Goucher's Catagolue

• The 25 ten-bit still-lifes at Mark D. Niemiec's Life Page