Carrier siamese hook-with-tail hook

Carrier siamese hook-with-tail hook
x = 8, y = 4, rule = B3/S23 2b2obo$o2b2obo$2o4bo$6b2o! #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 × 4
Frequency class	33.9
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-in3jnr – B2in34-ajnqr5678/S012345678
Glider synthesis Fewest gliders 6 Catagolue-generated RLE synthesis
Pattern files Plaintext carriersiamesehookwithtailhook.cells RLE carriersiamesehookwithtailhook.rle
Identifiers apgcode xs12_1784c826 Niemiec ID 12.82 Pentadecathlon ID 12.83

Carrier siamese hook-with-tail hook is a 12-cell still life.

Construction

This still life is known to be constructible with 7 gliders. A 8-glider synthesis was found in April 2019, making this the last strict 12-bit still life to be constructed with ≤ 8 gliders. A 7-glider synthesis was found in March 2021. Some known alternate syntheses can be found in Mark Niemiec's database.

x = 66, y = 83, rule = B3/S23 11bo$9b2o$10b2o5$43b2o$44bo4b2o$44bob2o2bo$45bob2o7$3bobo$4b2o5bo$4bo 5bo$10b3o7$bo$b2o3b2o$obo3bobo$6bo22$64b2o$63b2o$65bo26$59b2o$59bobo$ 59bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 450 THEME Book ZOOM 8 X -12 Y -24 AUTOSTART GPS 12 T 0 PAUSE 3 T 15 PAUSE 1 T 162 PAUSE 1 T 245 PAUSE 2 LOOP 246 ]] A 7G synthesis (click above to open LifeViewer)

x = 51, y = 33, rule = B3/S23 6bo$7bo37bo$5b3o36bo$44b3o3$48bo$48bobo$48b2o2$2o$bo4b2o8bo$bob2o2bo6b obo$2bob2o9b2o6b2o$22b2o5bo$24bo3b2o$28bobo6$5b2o$4bobo$6bo6$19b2o$18b obo$20bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 400 THEME Book ZOOM 10 AUTOSTART GPS 12 T 0 PAUSE 3 T 30 PAUSE 1 T 40 PAUSE 1 T 123 PAUSE 2 LOOP 124 ]] A 8G synthesis (click above to open LifeViewer)

x = 53, y = 54, rule = B3/S23 2bo$obo$b2o2$36bobo$36b2o$37bo3$3bo$bobo$2b2o3$3bo$4bo$2b3o$33bo$33bob o$33b2o4$30b3o$30bo8b2o$31bo8bo4b2o$40bob2o2bo$41bob2o$35b2o$35bobo$ 35bo19$31b3o$31bo$32bo17b2o$50bobo$50bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 600 THEME Book ZOOM 10 AUTOSTART GPS 12 T 0 PAUSE 3 T 74 PAUSE 1 T 81 PAUSE 2 LOOP 82 ]] A 9G synthesis (click above to open LifeViewer)

Occurrence

Among the 121 still lifes with 12 cells, this is the 105th most common still life according to Catagolue.

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

External links

• Carrier siamese hook-with-tail hook at Adam P. Goucher's Catagolue
• 12.83 at Heinrich Koenig's Game of Life Object Catalogs