Octomino II

From LifeWiki
Jump to navigation Jump to search
Octomino II
x = 4, y = 4, rule = B3/S23 bo$3o$ob2o$3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 600 WIDTH 600 THUMBSIZE 3 ZOOM 60 ]]
Pattern type Methuselah
Number of cells 8
Bounding box 4 × 4
MCPS 8
Lifespan 116 generations
Final population 20
L/I 14.5
F/I 2.5
F/L 0.172
L/MCPS 14.5
Static symmetry C1
Discovered by Unknown
Year of discovery Unknown

Octomino II is a semi-common evolutionary sequence that evolves into a diagonally symmetric constellation of two blocks, two blinkers, and a ship seen below after 116 generations.

In generation 52, it becomes a traffic light predecessor and a butterfly predecessor that will later interact in generation 62. The sequence gains diagonal symmetry in generation 56. Generation 86 is two R-pentominoes that will later interact in generation 101.

There are several known octomino II hasslers. The Gabriel's p138 oscillator features four octomino II sequences supporting each other in a rotationally symmetric way.

x = 13, y = 13, rule = B3/S23 10bo$10bo$10bo3$6b2o$5bobo$5b2o4b2o$11b2o2$3o$7b2o$7b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ]]
The ash of Octomino II
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagoluehere
x = 43, y = 37, rule = B3/S23 33bo4bo2bo$31b3o4bo$30bo6bo4bo$30b2o4bobo2b2o$34b2obo$27b2o$27b2o$34bo 2bo$36b2o2$17b2o$7b2o7bobo$6bobo7bo$5b3o7b2o6bo$5b2o16b2o$6bobo13bobo$ 7bobo2b2o$8bo2bobo$9b4o20b2o$10b2o17b2obo$29b2o2bo2bo$34bobo$25bo9bo$ 24b2o$24b2o8b2o$24bo9b2o3$5b2o$5b2o$5b2o7b2o$6bo7b2o$5bobo$3obobo4b2o$ 4obo6bo17bo$4bo4b3o19bo$9bo19b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 HEIGHT 500 STARTFROM 143 AUTOSTART GPS 20 ]]
The period-174 glider gun using hotcrystal0 reaction has a toad turning an octomino II predecessor into a glider
(click above to open LifeViewer)
RLE: here Plaintext: here


See also

References