Bookend siamese shillelagh

Bookend siamese shillelagh
x = 5, y = 6, rule = B3/S23 2o$obo$2bo$b2obo$o2b2o$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]] #C [[ ZOOM 48 ]]
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Pattern type	Strict still life
Number of cells	13
Bounding box	6 × 5
Frequency class	23.5
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/S2aek3knqr – B2cin34-kn5-jq678/S012345678
Glider synthesis Fewest gliders 4 Catagolue-generated RLE synthesis
Pattern files Plaintext bookendsiameseshillelagh.cells RLE bookendsiameseshillelagh.rle
Identifiers apgcode xs13_354mp3 Niemiec ID 13.213 Pentadecathlon ID 13.32

Bookend siamese shillelagh is a still life with 13 cells.

As its name implies, this still life can be seen to contain a bookend and shillelagh sharing cells. It very closely resembles house siamese shillelagh.

Construction

This still life can be constructed with 4 gliders. A 4-glider synthesis was found in 2017.

x = 49, y = 32, rule = B3/S23 46bo$46bobo$46b2o3$2o$obo$2bo10bo$b2obo9bo$o2b2o7b3o$2o12$26b2o$25b2o$ 27bo5$11b2o$10bobo$12bo! #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 20 PAUSE 3 T 28 PAUSE 1 T 185 PAUSE 2 LOOP 186 ]]

A 4G synthesis (click above to open LifeViewer)

x = 38, y = 33, rule = B3/S23 36bo$35bo$35b3o5$obo$b2o$bo$19bo$19bobo$4bobo12b2o$5b2o$5bo5$30b2o$30b obo$32bo$31b2obo$30bo2b2o$30b2o6$2b2o$bobo$3bo! #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 20 PAUSE 3 T 30 PAUSE 1 T 52 PAUSE 1 T 66 PAUSE 2 LOOP 67 ]]

A 5G synthesis (click above to open LifeViewer)

Converters

This section lists known synthesis components applicable to this still life, excluding converters that apply to a smaller object.

x = 34, y = 32, rule = B3/S23 5bobo$6b2o$6bo2$21bo$20bo$20b3o2$5b2o18b2o$5bobo17bobo3b2o$7bo19bo2bo 2bo$6b2obo16b2obob2o$5bo2b2o15bo3bo$5b2o18b2ob2o7$9b3o$11bo$2b2o6bo$3b 2o$2bo2$15b2o$15bobo$15bo$b2o$obo$2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 400 ZOOM 10 AUTOSTART GPS 12 T 0 PAUSE 1 T 20 PAUSE 3 T 34 PAUSE 2 LOOP 35 ]]

6G → xs20_354mhrz0696 (click above to open LifeViewer) Catagolue: here

Occurrence

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

Bookend siamese shillelagh is the 148th most common still life on Adam P. Goucher's Catagolue, being less common than twelve loop but more common than O quad-loaf. Among all still lifes with 13 cells, it is the 12th most common, being less common than krake but more common than claw at loaf.

There is a three-glider collision with this still life in the ash.

External links

• Bookend siamese shillelagh at Adam P. Goucher's Catagolue
• The 240 thirteen-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 13/13-213.rle)
• 13.32 at Heinrich Koenig's Game of Life Object Catalogs