Carrier siamese very long snake

From LifeWiki
Jump to navigation Jump to search
Carrier siamese very long snake
x = 5, y = 9, rule = B3/S23 2o$o$2bo$b2o$bo$2bo$3bo$4bo$3b2o! #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 5 × 9
Frequency class 34.0
Discovered by Robert Wainwright
Everett Boyer
Year of discovery 1973

Carrier siamese very long snake is a 12-cell still life.

Construction

This still life is known to be constructible with 6 gliders.[1] Some known glider syntheses can be found in Mark Niemiec's database.[2]

x = 92, y = 56, rule = B3/S23 90bo$89bo$2bo86b3o$obo$b2o18$72bobo$72b2o$73bo19$57bo$55b2o$56b2o$68b 2o$68bobo$71bob2o$52b3o17b2o2bo$52bo22b2o$53bo2$28b3o$30bo$29bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 450 THEME Book ZOOM 8 X 8 Y 16 AUTOSTART GPS 12 T 0 PAUSE 3 T 84 PAUSE 1 T 156 PAUSE 1 T 182 PAUSE 2 LOOP 183 ]]
A 6G synthesis[3] (the first stage is a 4G carrier siamese carrier found in 2017[4])
(click above to open LifeViewer)
x = 39, y = 23, rule = B3/S23 32bo$31bo$31b3o3$17bobo16bo$2o16b2o15bo$obo15bo16b3o$3bob2o$4b2o2bo$7b 2o3$10b2o5b2o$11b2o3bobo$10bo7bo$30b2o$29b2o$31bo2$37b2o$36b2o$38bo! #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 30 PAUSE 2 LOOP 31 ]]
A 7G synthesis[2]
(click above to open LifeViewer)

Occurrence

Among the 121 still lifes with 12 cells, this is the 106th 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.

References

  1. xs12_3pczw1ac at Adam P. Goucher's Catagolue
  2. 2.0 2.1 The 121 twelve-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 12/12-76.rle)
  3. xs12_3pczw1ac (archived copy)
  4. Simon Ekström (August 16, 2017). Re: 4 glider syntheses (discussion thread) at the ConwayLife.com forums

External links