Krake

Krake
x = 7, y = 5, rule = B3/S23 2o3b2o$obobobo$2bobo$2bobo$3bo! #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	13
Bounding box	7 × 5
Frequency class	23.4
Static symmetry	Unspecified
Discovered by	Unknown
Year of discovery	Unknown
Rules Outer-totalistic rules B/S23 – B378/S012345678 # of rules 210 = 1024 Isotropic rules B/S2-n3n – B2ikn34-in5-qy6-i78/S012345678
Glider synthesis Fewest gliders 4 Catagolue-generated RLE synthesis
Pattern files Plaintext krake.cells RLE krake.rle
Identifiers apgcode xs13_31ege13 Niemiec ID 13.171 Pentadecathlon ID 13.44

Krake is a 13-cell still life.

The krake is sometimes used when two eater 1s need to be placed close together.

Construction

Krake is known to be constructible with 4 gliders.

x = 35, y = 17, rule = B3/S23 31bo$30bobo$20bo9bobo$bo12bo5bobo5bobobobo$2bo10bo6b2o6b2o3b2o$3o10b3o9$7b2o$6bobo$8bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book ZOOM 10 AUTOSTART GPS 12 T 0 PAUSE 1 T 12 PAUSE 3 T 44 PAUSE 2 LOOP 45 ]] A 4G synthesis (click above to open LifeViewer)

x = 37, y = 59, rule = B3/S23 23bo$21b2o$22b2o5bo$29bobo$29b2o7$33bo$32bobo$32bobo$30bobobobo$30b2o 3b2o6$20bo$19b2o$19bobo4b2o$3o23bobo$2bo23bo$bo4$5bo$3bobo$4b2o$18bobo $18b2o$19bo$33bo$32bobo$11bo20bobo$9bobo18bobobobo$10b2o18b2o3b2o9$18b 2o$17b2o$19bo5$3b3o$5bo$4bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 650 THEME Book ZOOM 10 AUTOSTART GPS 12 T 0 PAUSE 1 T 12 PAUSE 3 T 20 PAUSE 1 T 43 PAUSE 2 LOOP 44 ]] Two 5G syntheses (click above to open LifeViewer)

Occurrence

This is the 143rd most common still life on Adam P. Goucher's Catagolue.

There are two collisions in the octo3obj database with krake in the ash.

See also

• Test tube baby, two eater 1s placed farther apart by one cell, making it a period-2 oscillator
• Hungry hat
• Aries

External links

• Krake at Adam P. Goucher's Catagolue
• 13.44 at Heinrich Koenig's Game of Life Object Catalogs
• The 240 thirteen-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 13/13-171.rle)