Beehive bridge bookend

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Beehive bridge bookend
x = 6, y = 7, rule = B3/S23 4b2o$3bobo$3bo$bob2o$obo$obo$bo! #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 × 7
Frequency class 25.4
Static symmetry n
Discovered by Unknown
Year of discovery Unknown

Beehive bridge bookend is a still life with 13 cells.

Construction

This still life can be constructed with 4 gliders.[1] A 4-glider synthesis was found in June 2015.[2]

x = 32, y = 23, rule = B3/S23 o$b2o$2o14bo$15bo$15b3o2$25b2o$25bo2bo$26b3o$29b2o$28bo2bo$29b2o5$9b3o $9bo$10bo2$23b2o$22b2o$24bo! #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 68 PAUSE 2 LOOP 69 ]]
A 4G synthesis[2]
(click above to open LifeViewer)
x = 44, y = 27, rule = B3/S23 38bo$37bo$37b3o16$2o19b2o$o2bo16bo2bo$b3o17b3o$4b2o5b3o10b2o$3bo2bo6bo 9bo2bo$4b2o6bo11b2o$41b2o$41bobo$41bo! #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 40 PAUSE 3 T 84 PAUSE 2 LOOP 85 ]]
A conversion from beehive bridge bun[3]
(click above to open LifeViewer)

Occurrence

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

Beehive bridge bookend is the 29th most common 13-cell still life out of 240.

There are no collisions in octohash, octo3obj or octo3g database with this still life in the final pattern.

See also

References

  1. xs13_08o696z321 at Adam P. Goucher's Catagolue
  2. 2.0 2.1 BobShemyakin (June 20, 2015). Re: 4 glider syntheses (discussion thread) at the ConwayLife.com forums
  3. Life Thirteen-Bit Still-Lifes at Mark D. Niemiec's Life Page (download pattern file: 13/13-209.rle)

External links