Hook-with-tail tail siamese snake

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Hook-with-tail tail siamese snake
x = 5, y = 7, rule = B3/S23 obo$2obo$3bo$3b2o$4bo$3bo$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]] #C [[ ZOOM 36 ]]
Pattern type Strict still life
Number of cells 12
Bounding box 7 × 5
Frequency class 33.6
Static symmetry n (C1)
Discovered by Robert Wainwright
Everett Boyer
Year of discovery 1973

The hook-with-tail tail siamese snake 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.[2] Several known alternate syntheses can be found in Mark Niemiec's database.[3]


x = 50, y = 36, rule = B3/S23 42bo$40b2o$41b2o5$44bo$44bobo$44b2o9$16bo$16bobo$16b2o2$obo$b2o$bo4$ 45b2o$46bo$45bo$45b2o$46bo$18b3o25bob2o$18bo28bobo$19bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 450 THEME Book ZOOM 10 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 107 PAUSE 2 LOOP 108 ]]
A 5G synthesis[2]
(click above to open LifeViewer)
x = 41, y = 39, rule = B3/S23 12bo$13bo$11b3o$37bo$36bo$36b3o$7bo$8bo$6b3o4$36b2o$37bo$36bo$36b2o$ 37bo$37bob2o$38bobo3$25b2o$17b3o5bobo$17bo7bo$18bo9$33b3o$33bo$34bo$bo $b2o$obo! #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 50 PAUSE 1 T 63 PAUSE 2 LOOP 64 ]]
A 7G synthesis[4]
(click above to open LifeViewer)
x = 47, y = 38, rule = B3/S23 22bo$20b2o6bo$21b2o5bobo$5bo22b2o$3bobo$4b2o$33bo$32bo$32b3o2$7bo$5bob o$6b2o$42b2o$43bo$42bo$42b2o$43bo$43bob2o$44bobo$22b2o$21b2o$23bo4$5b 2o$4bobo$6bo4$29b3o$29bo$30bo$bo$b2o$obo! #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 32 PAUSE 1 T 42 PAUSE 1 T 55 PAUSE 2 LOOP 56 ]]
A 9G synthesis[3]
(click above to open LifeViewer)


Occurrence

See also: List of common still lifes

Among the 121 still lifes with 12 cells, this is the 103rd 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. ↑ xs12_32132qk at Adam P. Goucher's Catagolue
  2. ↑ 2.0 2.1 shinjuku (#4320345430) (May 21, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
  3. ↑ 3.0 3.1 The 121 twelve-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 12/12-87.rle)
  4. ↑ "xs12_32132qk costs 7 gliders". Catagolue (July 16, 2021).