User:Melwin22/Workspace

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 ]] #C [[ WIDTH 800 HEIGHT 800 THUMBSIZE 2 ]]

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. Only two of them, c/3o and c/14d, are known to appear naturally.

x = 11, y = 8, rule = B357/S1358 bo6b3o$3o3b2o$6bob3o$obo4bobo$7bob2o$bo$bo$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

Two spaceships that appear on Catagolue. (click above to open LifeViewer)

Infinite growth

Some soups tend to explode, but the growth is very slow and chaotic: population of the example below grows only about 20 times during the first 10k generations.

x = 16, y = 16, rule = B357/S1358 ob4o3b3o2bo$bob3ob2ob5o$9b4obo$2b4obob3o2b2o$3bo4bo2b2o$3o4bo2b2ob3o$b 3obobo2bo3bo$b4o2b2o2b4o$2o2b3o2b2ob4o$bo2bobo4b2o$b2obo$3bo2bo5b3o$2o bob2ob3obob2o$o2bobob7obo$2o2b2ob4o2bo$2bob2ob4obobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

(click above to open LifeViewer)

Explosive properties are quite rare in apgsearch-size soups, but they get more and more common with increasing soup size.

See also

• LowLife
• Coral

External links

• Melwin22/Workspace at Adam P. Goucher's Catagolue
• Amoeba at Mirek Wójtowicz's Cellebration page
• Amoeba (B357/S1358) at David Eppstein's Glider Database (archived copy)
• Interesting Rules at Fano Experimental Web Server (archived copy)