Trans-very long hook with tail

Trans-very long hook with tail
x = 7, y = 4, rule = B3/S23 4bo$3bobo$obo2bo$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	10
Bounding box	7 × 4
Frequency class	27.7
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 transverylonghookwithtail_synth.rle
Pattern files Plaintext transverylonghookwithtail.cells RLE transverylonghookwithtail.rle
Identifiers apgcode xs10_1784213 Niemiec ID 10.15 Pentadecathlon ID 10.5

Trans-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 trans due to the corner part of the hook being farther from the tail; the other isomer, cis-very long hook with tail, has this corner part slightly closer.

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

Commonness

It is the second rarest 10-cell still life out of 25, ahead of only the long⁴ snake.

It is about 25 times as rare as the 9-cell long hook with tail and about 20 times as common as the trans-long³ hook with tail.

It is about 1.4 times as rare as the similar cis-very long hook with tail, which is the third rarest 10-cell still life.

Glider synthesis

A 5-glider synthesis for this still life was discovered on January 8, 2020.

See also

• Hook with tail family

External links

• Trans-very long hook with tail at Adam P. Goucher's Catagolue

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