Trans-boat with long⁴ tail

Trans-boat with long4 tail
x = 5, y = 9, rule = B3/S23 b2o$bobo$2bobo$4bo$3bo$2bo$bo$o$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]] #C [[ HEIGHT 500 THUMBSIZE 3 ZOOM 42 ]]
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Pattern type	Strict still life
Number of cells	13
Bounding box	9 × 5
Frequency class	27.8
Static symmetry	n (C1)
Discovered by	Unknown
Year of discovery	Unknown
Rules Outer-totalistic rules B/S23 – B3678/S012345678 # of rules 211 = 2048 Isotropic rules B/S2-i3cn – B2in34-jkr5-c678/S012345678
Glider synthesis Fewest gliders 5 Catagolue-generated RLE synthesis
Pattern files Plaintext transboatwithlong4tail.cells RLE transboatwithlong4tail.rle
Identifiers apgcode xs13_035iczca1 Niemiec ID 13.81 Pentadecathlon ID 13.75

Trans-boat with long⁴ tail is a 13-cell still life.

Construction

This still life is known to be constructible with 5 gliders. Two different 5-glider syntheses are shown below. Some alternate syntheses can be found in Mark Niemiec's database.

x = 34, y = 28, rule = B3/S23 o$b2o20bobo$2o21b2o$24bo6$5bo$6bo$4b3o2$32b2o$33bo$32bo$31bo$30bo$29bo $29bobo$30bobo$31b2o$22b3o$22bo$23bo$4b2o$5b2o$4bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 370 THEME Book ZOOM 10 X 0 Y 2 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 25 PAUSE 1 T 46 PAUSE 2 LOOP 47 ]]

A 5G synthesis (click above to open LifeViewer)

x = 37, y = 46, rule = B3/S23 31bobo$31b2o$32bo9$35b2o$36bo$35bo$6bo27bo$7bo25bo$5b3o24bo$32bobo$33b obo$34b2o3$3o$2bo$bo5$19b2o$19bobo$19bo12$27b2o$26b2o$28bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 490 THEME Book ZOOM 10 X 0 Y 0 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 25 PAUSE 1 T 62 PAUSE 2 LOOP 63 ]]

A 5G synthesis (click above to open LifeViewer)

Occurrence

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

Among the 240 still lifes with 13 cells, this is the 55th most common still life according to Catagolue.

The octo3obj database contains two collisions with this still life occurring in the ash. Both collisions converge to a sequence with one escaping glider and final population 90. One of two collisions is shown below; the other one can be obtained by removing the bottom block of the bi-block.

9bo$9bo$9bo2$2o3b3o$2o2$2o$2o4$13b3o$13bo$14bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ WIDTH 800 HEIGHT 600 THEME Book ZOOM 10 X -17 Y 2 AUTOSTART GPS 30 T 0 PAUSE 1 T 20 PAUSE 5 T 499 PAUSE 5 LOOP 500 ]]

One of two collisions with this still life in the ash in the octo3obj database (click above to open LifeViewer)

External links

• Trans-boat with long⁴ tail at Adam P. Goucher's Catagolue
• 13.75 at Heinrich Koenig's Game of Life Object Catalogs
• Life Thirteen-Bit Still-Lifes at Mark D. Niemiec's Life Page (download pattern file: 13/13-81.rle)