Barge with very long tail

Barge with very long tail
x = 5, y = 8, rule = B3/S23 bo$obo$bobo$2bobo$4bo$3bo$2bo$2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]]
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Pattern type	Strict still life
Number of cells	12
Bounding box	8 × 5
Frequency class	33.2
Static symmetry	n
Discovered by	Robert Wainwright Everett Boyer
Year of discovery	1973
Rules Outer-totalistic rules B/S23 – B35678/S012345678 # of rules 212 = 4096 Isotropic rules B/S2-i3cn – B2in34-ejkr5678/S012345678
Glider synthesis Fewest gliders 5 Catagolue-generated RLE synthesis
Pattern files Plaintext bargewithverylongtail.cells RLE bargewithverylongtail.rle
Identifiers apgcode xs12_25akg84c Niemiec ID 12.57 Pentadecathlon ID 12.114

The barge with very long tail is a 12-cell still life.

Construction

This still life is known to be constructible with 5 gliders. A 6-glider synthesis was found in July 2022. A 5-glider synthesis was found in April 2023.

x = 41, y = 43, rule = B3/S23 obo$b2o$bo20$22bobo$22b2o$23bo2$26bo$25bo$25b3o6$37b2o$38bo$37bo$36bo$ 36bobo$37bobo$7b3o3b2o23bobo$9bo2bobo24bo$8bo5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 550 THEME Book ZOOM 10 Y 7 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 49 PAUSE 1 T 125 PAUSE 2 LOOP 126 ]] A 5G synthesis (click above to open LifeViewer)

x = 56, y = 77, rule = B3/S23 42bo$34bo6bo$34bobo4b3o$34b2o9$51bo$49b2o$50b2o9$52b2o$53bo$52bo$51bo$ 51bobo$52bobo$53bobo$31bo22bo$30b2o10bobo$30bobo9b2o$43bo$3o13b3o$2bo 15bo$bo15bo4$42bo$34bo6bo$34bobo4b3o$34b2o9$51bo$49b2o$50b2o9$52b2o$ 53bo$52bo$51bo$51bobo$52bobo$53bobo$31bo22bo$30b2o$30bobo2$16b3o$18bo$ 17bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 640 THEME Book ZOOM 8 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 60 PAUSE 1 T 121 PAUSE 2 LOOP 122 ]] Two variants of a 6G synthesis (click above to open LifeViewer)

x = 40, y = 34, rule = B3/S23 5bobo$bo4b2o$2bo3bo$3o7$30bo$29bo$29b3o2$12bo$10bobo$11b2o2$36b2o$37bo $36bo$35bo$25b2o8bobo$25bobo8bobo$25bo11bobo$38bo3$25b3o$25bo$26bo$32b 2o$32bobo$32bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 400 THEME Book ZOOM 10 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 38 PAUSE 1 T 59 PAUSE 2 LOOP 60 ]] A 7G synthesis (click above to open LifeViewer)

x = 67, y = 33, rule = B3/S23 6bobo37bobo$7b2o38b2o$7bo39bo2$3bo42bo$4b2o41bo$3b2o40b3o4$37b2o$38bo$ 25b2o10bo27b2o$24b2o10bo27b2o$18bo7bo9bobo19bo7bo$17bobo17bobo17bobo$ 18bobo17bobo17bobo$19bo19bo19bo$43b2o$42bobo$44bo5$b2o$obo$2bo21bo$23b 2o17b2o$23bobo17b2o$42bo22bo$64b2o$64bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book ZOOM 8 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 47 PAUSE 2 LOOP 48 ]] Two conversions from the barge (click above to open LifeViewer)

Occurrence

See also: List of common still lifes

On Catagolue, this is the 99th most common 12-cell still life, the 1835th most common still life and the 1909th most common pattern.

There are no collisions in octohash, octo3obj or octo3g databases with this still life occurring in the ash.

External links

• Barge with very long tail at Adam P. Goucher's Catagolue
• 12.114 at Heinrich Koenig's Game of Life Object Catalogs