Tub with tail

Tub with tail
x = 5, y = 5, rule = B3/S23 bo$obo$bobo$3bo$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C Still life
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Pattern type	Strict still life
Number of cells	8
Bounding box	5×5
Frequency class	15.8
Discovered by	Charles Corderman Hugh Thompson
Year of discovery	1971
Rules Outer-totalistic rules B/S23 – B35678/S012345678 Important rules Conway Life, HighLife # of rules 212 = 4096 Isotropic rules B/S2-in3cr – B2-ae34-aejn5678/S012345678
Glider synthesis Fewest gliders 4 Catagolue-generated RLE tubwithtail_synth.rle Uploaded synthesis RLE tubwithtail_synth.rle
Pattern files Plaintext tubwithtail.cells RLE tubwithtail.rle
Identifiers apgcode xs8_178k8 Pentadecathlon ID 8.6

Tub with tail (or twit, originally from the acronym) is an 8-cell still life discovered by Charles Corderman and Hugh Thompson in 1971. It is notable for its use in eater 5.

This still life is comprised of the normally stable tub with a normally unstable tail attached.

Commonness

Tub with tail is the twenty-eighth most common still life in Achim Flammenkamp's census, being less common than very long boat but more common than very long ship. It is also the thirty-seventh most common object on Adam P. Goucher's Catagolue.

Glider synthesis

All strict still lifes with a population of 20 or fewer cells, as well as all oscillators and spaceships with 16 or fewer cells, are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.

Tub with tail(s) family

Tub with two down cis tails	Tub with two up cis tails	Tub with two down trans tails	Tub with two up trans tails

Tub with long tail	Cis-tub with long^3 tail	Cis-tub with long^4 tail	Trans-tub with long^3 tail	Trans-tub with long^4 tail

See also

• Spiral

External links

• Tub with tail at the Life Lexicon

• Tub with tail at Adam P. Goucher's Catagolue

• The 9 eight-bit still-lifes at Mark D. Niemiec's Life Page