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'''Amoeba''' is a [[Life-like cellular automaton]] with [[rulestring]] B357/S1358. It is characterised by larger soups very slowly exploding, being well balanced between life and death.  
'''Amoeba''' is a [[Life-like cellular automaton]] with [[rulestring]] B357/S1358. It is characterised by larger soups very slowly exploding, being well balanced between life and death.  


There are known [[spaceships]] of speeds c/2o, c/3o, c/4o, c/5o, 2c/5o, c/6o, c/7o, 2c/7o, c/9o, c/12o, c/3d, c/4d, c/6d, c/14d.<ref name="gliderdb" />
== Patterns ==
=== Still lifes ===
[[Domino]], [[duoplet]] and [[block]] are the simplest still lifes in Amoeba. Some bigger examples are shown as well.
 
{{EmbedViewer
|rle          = x = 37, y = 5, rule = B357/S1358
o2bo3b2o4bo6bo6bo6b2o$o3bo2b2o4bo4b5o2b5o2b3obo$11b2ob2o16b2ob2o$13bo
6bo4b5o4b2o$13bo6bo6bo6b2o!
|position    = center
}}
 
=== Oscillators ===
Natural [[oscillator]]s of even periods up to 16 are known, as well as a few examples of period 3.


{{EmbedViewer
{{EmbedViewer
|rle          = x = 115, y = 79, rule = B357/S1358
|rle          = x = 92, y = 94, rule = B357/S1358
4bobo7bo3b2o4bo6bo6bo53bobo4bob2ob2o4bo$3bo3bo2b2o3bo2b2o4bo4b5o2b5o50b
2ob2obo4b2o2b2o7b2o4b2o3bo4b2o24bobo4bob2obo5bobo$7bo2bo5b2o5bo4b4o2bo
o3bo2bo12bobo$22b2ob2o84bo2bo$bo5bo16bo6bo4b5o48bo5bo2bo12bobo$o6bo16b
bo2bo2bo22bo3bo2bo6bo5b2o$22bobo57bobobobo$7bo14bo5b4o2bobo2bo2bo20bo
o6bo6bo49bo6bo2bo11bo2$7bo87bo3bob2obo$7bo87bo2bo6bo2$7bo87bo2bo6bo$7b
5bo2bo6bo4b2o$7bo3bobo3bo12b2o3bo4b2o20bo6bo2bo6bo4bobo$10bobo3bob2o$
o87bo2bo6bo2$7bo87bo2bo6bo$7bo87bo3bob2obo3$2ob2obo5bo2b2o3b2o3bo6bo5b
7bo61bo2bo6bo$bob2obo62bo2bo6bo$o15bo16bo3bo$11bobo2b2o2bobo5bobo2bo3b
o$7bo2b2o2b2o2b2o3b2obo3bobo2b2obo2b3o2b4o$31bo$7bo21b2o4b2obo2b3o2b4o
o2bobo26bo2bo6bo$o9bo3bobo3bobo4bo3bobo3bobo3bo25bo2bo6bo$o10bobo2b2o
$7bo30bo2$7bo$bob2obo10bo14bo3bo$o10bobo2b2o2bobo4bobo3bobo3bobo$11bo
2bobo5bobo2bo3bo2bobo$16bo16bo3bo31bo2bo6bo$o68bo3bob2obo$bob2ob2o6$2o
bo3bobo3bo3bobo3bobo3bobo$o10bobo2b2o2bobo4bobo3bobo3bobo$o16bo14bo3b
b2obo7bo6bobo42bobo3b2ob2obo9bo$7bo7bo3b2ob2o41bo3bo9bo4b5o$13b2obo3bo
o2$o$bob2ob2o3$2ob2obo$7bo5b3o$14b2o$7bo3bo3bo$7bo3b2o$11b3o$7bo$2ob2o
3bo61bobo$7bo4bobo6b2ob2o37bo5bo9bo4b5o$7bo2bob2o7bobo38bo6bo9bo8bo$
bo2$7bo$7bo2$7bo$2ob2obo3$o6bo11b2o5bo6bo6b2o$o6bo11b2o4bo2b2o4b2o3bo
11bo$7bo4bo56bo9bo$2ob2obo62bo3bob2obo$72bo$7bo61bo17bo$7bo2b3o7b6o43b
5b2obo$10bo3bo4b2o5bo7b2o9b2o$o6bo3b3o19bo6b2o3b2obo$o6bo32b2o4bo2$o6b
o2bo11b2ob2o$11bo2bo5b2o2b2o46bo14bo$7bo4bo2bo53bo14b2ob2o$2ob2obo7b3o
o$bob2obo10b2o4bo9bo$11bo2bo7bo9bo11b3o3b3o3b3o3b3o7b3o3b3o$7bo3bo2bo
5b2o45bo2bo14bo$22b2o49bob2ob2o6$o6bo11b2o5bo6b2o5bo25bobo3bo6bo4bo3bo
2bo4bo9bo5bo5bo7bo3bo7bo2bo4bo7bo4bo$7bo3bo2bo7bo3b3o3bo6b2o3b3o3b3o3b
bo$o6bo10b4o4b4o3bobo2b2o4b3o18bo3bo2bo6bo2b2ob2ob2obo$10b5o4b2o5bo6bo
3o3b3o7b3o3b3o2b2o$23bo3b2o4bo5b2o26b2o14b2o$7bo30bo46bo$7bo3$bob2ob2o
bo3bo3b4o39bobo$o6bo25b2o4b2o22bo5bo2bo6bo$o6bo4bo26b2o3bobo15bo6bo2bo
4bo$o9b2ob2o2$o10bobo$o2$bob2obo$o6bo2$o6bo$o6bo2$o6bo$bob2obo!
6bo2$o6bo61bo2bo6bo$bob2obo19bo42bo3bob2obo$19bo5bobo2bobo2bo4bobo$7bo
2b3o5b2obo2bob2o2bo4bo4bo4b2o22bo9bo$7bo2bo3bo3bo7bo4bo3bobo3bo2b4o21b
o9bo$12b3o3b2obo4bo8bo9b2o$7bo11bo15bo33bo9bo$7bo61bo9bo7$bob2ob2o3bob
o52bobo4bob2ob2o4bo$o9bobobo4b3obo41bo3bo2bo11bob2o$10b2ob2o3b2ob2o61b
ob2o$o62bo5bo2bo11bob2o$o17b2ob2o39bo6bo2bo11bo$19b3obo$bob2obo62bo3bo
b2obo$o6bo61bo2bo6bo2$o6bo2b2o2bo4b3o47bo2bo6bo$o6bo6bo3b2ob3o45bo2bo
6bo$11bobo$o6bo10b2ob3o45bo2bo6bo$bob2obo6b2o4b3o47bo3bob2obo7$bob2obo
$o6bo7bo$14b3o$o6bo5b3o$o6bo4b3o$11b3o$bob2obo5bo$o6bo2$o6bo$o6bo2$o6b
o$bob2obo!
|position    = center
|position    = center
|caption      = Collection of patterns
|caption      = Collection of oscillators
|style        = width:300px;
|style        = width:300px;
}}
}}
=== Spaceships ===
There are known [[spaceships]] of speeds c/2o, c/3o, c/4o, c/5o, 2c/5o, c/6o, c/7o, 2c/7o, c/9o, c/12o, c/3d, c/4d, c/6d, c/14d.<ref name="gliderdb" />
== Infinite growth ==


== See also ==
== See also ==

Revision as of 12:07, 1 August 2026

Amoeba
x=64, y = 64, rule = B357/S1358 ! #C [[ THEME Inverse ]] #C [[ RANDOMIZE2 THUMBLAUNCH THUMBNAIL THUMBSIZE 2 GRID ZOOM 6 WIDTH 600 HEIGHT 600 LABEL 90 -20 2 "#G" AUTOSTART PAUSE 2 GPS 8 LOOP 256 ]]
LifeViewer-generated pseudorandom soup
Rulestring 1358/357
B357/S1358
Rule integer 152744
Character Explosive
Black/white reversal B12468/S024678

Amoeba is a Life-like cellular automaton with rulestring B357/S1358. It is characterised by larger soups very slowly exploding, being well balanced between life and death.

Patterns

Still lifes

Domino, duoplet and block are the simplest still lifes in Amoeba. Some bigger examples are shown as well.

x = 37, y = 5, rule = B357/S1358 o2bo3b2o4bo6bo6bo6b2o$o3bo2b2o4bo4b5o2b5o2b3obo$11b2ob2o16b2ob2o$13bo 6bo4b5o4b2o$13bo6bo6bo6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
(click above to open LifeViewer)

Oscillators

Natural oscillators of even periods up to 16 are known, as well as a few examples of period 3.

x = 92, y = 94, rule = B357/S1358 2ob2obo4b2o2b2o7b2o4b2o3bo4b2o24bobo4bob2obo5bobo$7bo2bo5b2o5bo4b4o2bo bo2bo2bo22bo3bo2bo6bo5b2o$22bobo57bobobobo$7bo14bo5b4o2bobo2bo2bo20bo 5bo2bo6bo4b2o$7bo3bobo3bo12b2o3bo4b2o20bo6bo2bo6bo4bobo$10bobo3bob2o$ 7bo61bo2bo6bo$bob2obo62bo2bo6bo$o15bo16bo3bo$11bobo2b2o2bobo5bobo2bo3b o2bobo26bo2bo6bo$o9bo3bobo3bobo4bo3bobo3bobo3bo25bo2bo6bo$o10bobo2b2o 2bobo5bobo2bo3bo2bobo$16bo16bo3bo31bo2bo6bo$o68bo3bob2obo$bob2ob2o6$2o b2obo7bo6bobo42bobo3b2ob2obo9bo$7bo7bo3b2ob2o41bo3bo9bo4b5o$13b2obo3bo 3bo61bobo$7bo4bobo6b2ob2o37bo5bo9bo4b5o$7bo2bob2o7bobo38bo6bo9bo8bo$ 11bo$7bo4bo56bo9bo$2ob2obo62bo3bob2obo$72bo$7bo61bo17bo$7bo2b3o7b6o43b o2bo11b2ob2o$11bo2bo5b2o2b2o46bo14bo$7bo4bo2bo53bo14b2ob2o$2ob2obo7b3o 5b2o45bo2bo14bo$22b2o49bob2ob2o6$o6bo11b2o5bo6b2o5bo25bobo3bo6bo4bo3bo bo$o6bo10b4o4b4o3bobo2b2o4b3o18bo3bo2bo6bo2b2ob2ob2obo$10b5o4b2o5bo6bo bo3bo3b4o39bobo$o6bo25b2o4b2o22bo5bo2bo6bo$o6bo4bo26b2o3bobo15bo6bo2bo 6bo2$o6bo61bo2bo6bo$bob2obo19bo42bo3bob2obo$19bo5bobo2bobo2bo4bobo$7bo 2b3o5b2obo2bob2o2bo4bo4bo4b2o22bo9bo$7bo2bo3bo3bo7bo4bo3bobo3bo2b4o21b o9bo$12b3o3b2obo4bo8bo9b2o$7bo11bo15bo33bo9bo$7bo61bo9bo7$bob2ob2o3bob o52bobo4bob2ob2o4bo$o9bobobo4b3obo41bo3bo2bo11bob2o$10b2ob2o3b2ob2o61b ob2o$o62bo5bo2bo11bob2o$o17b2ob2o39bo6bo2bo11bo$19b3obo$bob2obo62bo3bo b2obo$o6bo61bo2bo6bo2$o6bo2b2o2bo4b3o47bo2bo6bo$o6bo6bo3b2ob3o45bo2bo 6bo$11bobo$o6bo10b2ob3o45bo2bo6bo$bob2obo6b2o4b3o47bo3bob2obo7$bob2obo $o6bo7bo$14b3o$o6bo5b3o$o6bo4b3o$11b3o$bob2obo5bo$o6bo2$o6bo$o6bo2$o6b o$bob2obo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
Collection of oscillators
(click above to open LifeViewer)

Spaceships

There are known spaceships of speeds c/2o, c/3o, c/4o, c/5o, 2c/5o, c/6o, c/7o, 2c/7o, c/9o, c/12o, c/3d, c/4d, c/6d, c/14d.[1]

Infinite growth

See also

References