Very long cis-shillelagh

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Very long cis-shillelagh
x = 8, y = 7, rule = B3/S23 6b2o$7bo$6bo$5bo$2o2bo$o2bo$b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]]
Pattern type Strict still life
Number of cells 12
Bounding box 6 × 9
Frequency class 29.3
Static symmetry n (C1)
Discovered by Unknown
Year of discovery Unknown

The very long cis-shillelagh is a 12-cell still life.

Construction

A 5-glider synthesis of this still life was found in January 2020.[1] Some known alternate syntheses can be found in Mark Niemiec's database.[2]

x = 30, y = 24, rule = B3/S23 7bo$8bo$6b3o7$2o22b2o$b2o7b2o11bobo$o8b2o12bo$11bo12bo$25bo$26bo$27bobo$14bo13b2o$13b2o$13bobo3$16bo$15b2o$15bobo! #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 28 PAUSE 2 LOOP 29 ]]
A 5G synthesis[1]
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x = 33, y = 31, rule = B3/S23 25bo$23b2o$24b2o2$bobo$2b2o3bo$2bo5b2o$7b2o9$2o25b2o$b2o23bobo$o25bo$27bo$15b3o10bo$15bo13bo$3b2o11bo13bobo$2bobo26b2o$4bo4$18b2o$18bobo$18bo! #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 15 PAUSE 1 T 29 PAUSE 1 T 35 PAUSE 1 T 36 PAUSE 2 LOOP 37 ]]
A 7G synthesis[2]
(click above to open LifeViewer)

Occurrence

Among still lifes with 12 cells, this is the 56th most common 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

References

  1. 1.0 1.1 Ian07 (January 18, 2020). Re: Randomly enumerating glider syntheses (discussion thread) at the ConwayLife.com forums
  2. 2.0 2.1 The 121 twelve-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 12/12-33.rle)