Gull with tub

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Gull with tub
x = 7, y = 7, rule = B3/S23 5bo$4bobo$3bobo$3bo$b3o$o$2o! #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 7 × 7
Frequency class 24.9
Discovered by Robert Wainwright
Everett Boyer
Year of discovery 1973

The gull with tub is a 12-cell still life.

Glider synthesis

x = 45, y = 17, rule = B3/S23 2bo26bobo$obo27b2o$b2o27bo2$12bo$12bobo$12b2o4$38b2o$4b2o14b2o17b2o$5b 2o13bobo15bo3b2o$4bo15bo21bobo$29b2o11bo$28bobo$30bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book ZOOM 10 GPS 8 AUTOSTART T 0 PAUSE 3 T 14 PAUSE 1 T 23 PAUSE 2 LOOP 24 ]]
4G syntheses[1]
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Gull with tub can be synthesized in 4 gliders; two ways are shown above. Some alternate syntheses can be found in Mark Niemiec's database.[1]

Occurrence

Among the 121 still lifes with 12 cells, this is the 25th most common still life according to Catagolue.

The only collision in the octohash database with gull with tub in the ash is shown below. This still life also occurs in final patterns of two collisions in the octo3obj database.[2]

x = 10, y = 10, rule = B3/S23 8b2o$2o5bobo$obo4bo$2bo3b2o$2b2o3$7b2o$7bobo$7bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book ZOOM 12 GPS 8 AUTOSTART T 0 PAUSE 3 T 11 PAUSE 2 LOOP 12 ]]
A collision from the octohash database
(click above to open LifeViewer)

See also

References

  1. 1.0 1.1 The 121 twelve-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 12/12-109.rle)
  2. Both collisions from the octo3obj database converge to the same sequence after 6 ticks. The headerless RLEs are 2bo$bobo$bobo$2bo5$4b2o3b2o$2o2b2o3b2o$2o2$bo$2o$obo! and 2bo$bobo$bobo$2bo5$9b2o$2o7b2o$2o2$bo$2o$obo!

External links