Hook with two tails

Hook with two tails
x = 6, y = 6, rule = B3/S23 2b2o$2bo$3bo$3obo$o3bo$4b2o! #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	6 × 6
Frequency class	34.3
Static symmetry	Unspecified
Discovered by	Robert Wainwright Everett Boyer
Year of discovery	1973
Rules Outer-totalistic rules B/S23 – B35678/S012345678 # of rules 212 = 4096 Isotropic rules B/S2aek3cnr – B2ikn34-ajnr5678/S012345678
Glider synthesis Fewest gliders 6 Catagolue-generated RLE synthesis
Pattern files Plaintext hookwithtwotails.cells RLE hookwithtwotails.rle
Identifiers apgcode xs12_ghn84cz1 Niemiec ID 12.119 Pentadecathlon ID 12.82

The hook with two tails is a 12-cell still life.

Construction

This still life is known to be constructible with 6 gliders. Some alternate syntheses can be found in Mark Niemiec's database.

x = 35, y = 49, rule = B3/S23 33bo$32bo$32b3o11$14bo$14bobo$14b2o8$bo19bo$2bo18bobo$3o18b2o5$29b2o$ 30bo3bo$30bob3o$31bo$32bo$14bo16b2o$3b2o8b2o$2bobo8bobo$4bo8$15b2o$15b obo$15bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 540 THEME Book ZOOM 10 X -4 Y 0 AUTOSTART GPS 12 T 0 PAUSE 3 T 12 PAUSE 1 T 30 PAUSE 1 T 31 PAUSE 1 T 32 PAUSE 1 T 97 PAUSE 1 T 98 PAUSE 2 LOOP 99 ]] A 7G synthesis (click above to open LifeViewer)

x = 31, y = 19, rule = B3/S23 10bo$8bobo$9b2o$18b2o$5b2o10b2o6b2o$6bo12bo6bo3bo$6bob2o16bob3o$7bo2bo 16bo$8b2o18bo$obo24b2o$b2o$bo$14b3o$14bo$9b2o4bo$8b2o$3b2o5bo$2bobo$4bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book ZOOM 10 X 0 Y 0 AUTOSTART GPS 12 T 0 PAUSE 3 T 21 PAUSE 2 LOOP 22 ]] A 6G conversion from beehive with tail (click above to open LifeViewer)

Occurrence

See also: List of common still lifes, List of still lifes with 12 cells

Among the 121 still lifes with 12 cells, this is the 109th most common (i.e. 13th rarest) still life according to Catagolue.

There are no collisions in octohash, octo3obj or octo3g databases with this still life occurring in the ash.

See also

• Hook with tail

External links

• Hook with two tails at Adam P. Goucher's Catagolue
• 12.82 at Heinrich Koenig's Game of Life Object Catalogs