Cis-snake on bun

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Cis-snake on bun
x = 6, y = 4, rule = B3/S23 2o2bo$o2bobo$bobobo$2ob2o! #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 13
Bounding box 6 × 4
Frequency class 25.6
Discovered by Unknown
Year of discovery Unknown

Cis-snake on bun is a 13-cell still life which involves a snake stabilising a bun.

Construction

This still life is known to be constructible with 5 gliders.[1] A 6-glider and a 5-glider syntheses were found in 2015.[2][3]

x = 34, y = 27, rule = B3/S23 5bo$6bo19bo$4b3o17b2o$25b2o5$31b2o$30bo2bo$30b3o2$30b2obo$30bob2o7$bo 5b3o$b2o6bo$obo5bo2$20b3o$20bo$21bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book ZOOM 10 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 49 PAUSE 2 LOOP 50 ]]
A 5G synthesis[3]
(click above to open LifeViewer)
x = 65, y = 53, rule = B3/S23 41bo$41bobo$41b2o6$b2o$o2bo$3o$17bo$2obo14bo$ob2o12b3o9$31b2o$31bobo$ 31bo9$15b2o$14bobo$16bo8$62b2o$62bobo$62bo5$51b2o$51bobo$51bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 500 THEME Book ZOOM 10 X -10 Y -10 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 27 PAUSE 1 T 108 PAUSE 1 T 118 PAUSE 2 LOOP 119 ]]
A 6G synthesis[2]
(click above to open LifeViewer)
x = 34, y = 31, rule = B3/S23 obo$b2o$bo3$19bo$6bo12bobo$4bobo12b2o$5b2o5$31b2o$30bo2bo$30b3o2$30b2o bo$30bob2o5$2b2o$3b2o12b2o$2bo14bobo2b2o$17bo3b2o$23bo$b3o$3bo$2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 380 THEME Book ZOOM 10 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 31 PAUSE 2 LOOP 32 ]]
A 7G synthesis[4]
(click above to open LifeViewer)

Occurrence

See also: List of common still lifes, List of still lifes with 13 cells

Cis-snake on bun is the 33rd most common 13-cell still life out of 240.

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

Isomers

This specific isomer is named cis due to having a smaller bounding box, as the two "ends" of each island are effectively aligned. Since the snake is a stable pattern by itself, the term on is used rather than and.

See also

References

  1. xs13_6970bd at Adam P. Goucher's Catagolue
  2. 2.0 2.1 BobShemyakin (January 07, 2015). Re: 4 glider syntheses (discussion thread) at the ConwayLife.com forums
  3. 3.0 3.1 BobShemyakin (April 05, 2015). Re: 4 glider syntheses (discussion thread) at the ConwayLife.com forums
  4. The 240 thirteen-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 13/13-221.rle)

External links