Long⁴ shillelagh

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Long4 shillelagh
x = 9, y = 6, rule = B3/S23 7b2o$6bobo$5bo$2o2bo$o2bo$b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]] #C [[ ZOOM 30 ]]
Pattern type Strict still life
Number of cells 12
Bounding box 6 × 8
Frequency class 30.6
Static symmetry n (C1)
Discovered by Unknown
Year of discovery Unknown

Long4 shillelagh[1] (or remarkably long shillelagh[2]) is a 12-cell still life.

Construction

This still life is known to be constructible with 5 gliders.[1] A 5-glider synthesis was found in May 2023.[3] Some alternate syntheses can be found in Mark Niemiec's database.[4]


x = 37, y = 24, rule = B3/S23 25bo$23b2o$24b2o2$29bobo$21bo7b2o$20bo9bo$20b3o3$35b2o$36bo$35bo$34bo$ 33bo$32bo$31bo$31bobo$32b2o2$12b3o$3o11bo$2bo10bo$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 450 THEME Book ZOOM 12 X 0 Y 0 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 65 PAUSE 2 LOOP 66 ]]
A 5G synthesis[3]
(click above to open LifeViewer)
x = 48, y = 29, rule = B3/S23 45bo$2bo42bobo$3b2o40b2o$2b2o10$17bo$17bobo$17b2o3$7bo28b2o$obo5bo28bo $b2o3b3o27bo$bo33bo$34bo$33bo$32bo$32bobo$21b2o10b2o$21bobo$21bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 450 THEME Book ZOOM 10 X 0 Y 4 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 84 PAUSE 1 T 90 PAUSE 2 LOOP 91 ]]
A 6G synthesis[5]
(click above to open LifeViewer)
x = 46, y = 52, rule = B3/S23 2bo$obo$b2o4$2bo$3bo$b3o3$39bo$19bo18bo$20b2o16b3o$19b2o6$44b2o$45bo$ 44bo$43bo$42bo$41bo$40bo$40bobo$16b3o13b2o7b2o$18bo13bobo$17bo14bo19$ 39bo$38b2o$38bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 450 THEME Book ZOOM 10 X 0 Y 0 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 28 PAUSE 1 T 78 PAUSE 2 LOOP 79 ]]
A 7G synthesis[4]
(click above to open LifeViewer)
x = 39, y = 39, rule = B3/S23 35bo$34bo$34b3o$2bo$obo$b2o4$7bo$8b2o$7b2o4$27bo$27bobo$27b2o3$37b2o$ 38bo$37bo$36bo$7b2o26bo$6bobo25bo$8bo24bo$33bobo$34b2o6$33b3o$33bo$24b 2o8bo$24bobo$24bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 450 THEME Book ZOOM 10 X 0 Y 4 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 46 PAUSE 1 T 62 PAUSE 2 LOOP 63 ]]
A 7G synthesis[2]
(click above to open LifeViewer)


Occurrence

See also: List of common still lifes

Among the 121 still lifes with 12 cells, this is the 71st most common still life according to Catagolue.

There are no occurrences of this still life in final patterns of collisions in octohash, octo3obj or octo3g databases.

See also

References

  1. 1.0 1.1 xs12_69jzx1ac at Adam P. Goucher's Catagolue
  2. 2.0 2.1 "xs12_69jzx1ac costs 7 gliders". Catagolue (July 16, 2021).
  3. 3.0 3.1 shinjuku (#4350721262) (May 25, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
  4. 4.0 4.1 The 121 twelve-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 12/12-32.rle)
  5. "xs12_69jzx1ac costs 6 gliders". Catagolue (October 28, 2022).