OCA:Pseudo Life

Pseudo Life
Rulestring	238/357 B357/S238
Rule integer	137384
Character	Chaotic
Black/white reversal	B123478/S024678

Pseudo Life is a Life-like cellular automaton with rulestring B357/S238. It is a chaotic rule with evolution that resembles Conway's Life, but almost none of the engineered patterns work.

Description

Pseudo Life is a Life-like cellular automaton with the following evolution rules:

• A dead cell with 3, 5 or 7 alive neighbours will be born in the next generation; otherwise, the cell will remain dead.
• An alive cell with 2, 3 or 8 alive neighbours will survive in the next generation; otherwise the cell will die.

Viewed as the set of neighbour-counting conditions for birth and survival, the rule definition may be seen as the union of Grounded Life (B35/S23), DryLife (B37/S23) and EightLife (B3/S238). The presence of B5 has the largest effect on the evolution, causing engineered patterns from Life to fail. In contrast, many patterns either do not depend on presence of B7 and S8, or function without them in an analogous way.

Patterns

x = 260, y = 29, rule = B357/S238 222bo$222b2o$180bo40b2obo$96b2o83bobo37bobobo$70b3o23b2o82bo4bo30bo4b 4obo$186bo28bobo3b3obo$180bob2o3bo$58b3o7b3o109bo6bo27b3o$68bo2bo49b2o 58bo3bo$56bo5bo4b3obo49b2o60b2o$56bo5bo4b5o44bo12bo56bo57bobo$56bo5bo 4bobo45bobo5b3o2bobo54b2o51bo5bobo7b2o$2b3o61b3o49bo4bo3bo56b3o2bo2bo 43bo9bob2o7b2o$58b3o52bo2b3o4bo2bobob2o52b2o3bo5b3o37bobo3bo5b2obo2b2o bo2bo$o5bo61bo43b3o2bobobo2b2o3b3o52b2o3b3o3b2o38bo2bobo2bo3b2o5bob2ob o$o5bo106bo7bo8b2o51b4obo2bo4b3o15bobo19b3o2bobo5bo4bo2b3o$o5bo52b2o 56bo3bo62b7o4b4o38bo12bo$58bo2bo55bo2bo64b2ob5o5bo52bo2bo$2b3o56bo55b 2o68b2o2b2o60bo$59bobo129b2o$186bo6b2o$56b3o127bob2ob3o$55bo3bo126bo2b o$55bo3bo127bobo$34b2o19bo3bo98b2o$34b2o20b3o99b2o33bo$192bobo$193bobo $194bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 2 ZOOM 4 QUALITY WIDTH 1200 HEIGHT 250 GPS 20 AUTOSTART TRACKLOOP 248 1/2 0/2 ]]

A naturally occurring period-248 c/2o puffer. The engine also works in Grounded Life (B35/S23), evolving into a p136 puffer. (click above to open LifeViewer) Catagolue: here

Naturally occurring objects in this rule include oscillators of periods 2, 3, 4, 5, 8, 9, 12, 18, 36, the small 2c/5 orthogonal and c/3 orthogonal spaceships (shown below), as well as a period-248 mod-124 c/2 orthogonal puffer that leaves one block and one traffic light after every 124 generations. There are also seminatural oscillators of periods 6, 10, 14, 16, 21, 24, 34, 35, 48, 64, 98.

Known spaceship speeds are c/2o, c/3o, c/4o, c/5o, 2c/5o, c/6o, 2c/6o, c/7o, 2c/7o, c/4d.

x = 3, y = 11, rule = B357/S238 2o$3o$b2o2$bo$bo$bo2$bo$obo$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 600 THUMBSIZE 3 ZOOM 30 Y 3 GPS 10 AUTOSTART T 0 PAUSE 2 T 38 PAUSE 1 LOOP 39 ]] A predecessor of the 2c/5o spaceship appearing in the siderake (click above to open LifeViewer)

Based on the natural puffer, there are engineered c/2 orthogonal spaceships of periods 24 (2-engine), 56 (2-engine), 72 (6-engine).

On December 10, 2022, FWKnightship constructed a 24c/48 siderake emitting 2c/5o spaceships. The siderake works by incrementally building a tub+blinker constellation and then sparking it into a collision between the tub and a beehive spark.

Oscillators

x = 20, y = 20, rule = B357/S238 4bo10bo$2bo2bo8bo2bo$bo2bobo6bobo2bo$3bo12bo$obo2bo8bo2bobo$bo2bo10bo 2bo$2bo5b4o5bo$8bo2bo$6b3o2b3o$6bo6bo$6bo6bo$6b3o2b3o$8bo2bo$2bo5b4o5b o$bo2bo10bo2bo$obo2bo8bo2bobo$3bo12bo$bo2bobo6bobo2bo$2bo2bo8bo2bo$4b o10bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 3 ZOOM 24 HEIGHT 600 THEME Book STARTFROM 14 ]]

80P14 (May 2015) (click above to open LifeViewer) Catagolue: here

x = 12, y = 5, rule = B357/S238 10bo$ob3obo2bobo$o3bo2bobobo$ob3obo2bobo$10bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 3 ZOOM 24 HEIGHT 600 THEME Book STARTFROM 16 ]]

21P16 (December 2022} (click above to open LifeViewer) Catagolue: here

x = 7, y = 6, rule = B357/S238 b2ob2o$bo3bo$b2ob2o$o5bo$obobobo$3ob3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 3 ZOOM 24 HEIGHT 600 THEME Book STARTFROM 18 ]]

22P18 (February 2015) (click above to open LifeViewer) Catagolue: here

x = 19, y = 19, rule = B357/S238 8b2o$9b2o$9bo2$10bo$10b2o2$5bo$bo2b2o12bo$3o13b3o$o12b2o2bo$13bo2$7b2o$8bo2$9bo$8b2o$9b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 3 ZOOM 24 HEIGHT 600 THEME Book STARTFROM 21 ]]

32P21 (May 2015) (click above to open LifeViewer) Catagolue: here

x = 13, y = 13, rule = B357/S238 2b3o3b3o$5bobo$o4bobo4bo$o3bo3bo3bo$o2bo5bo2bo$b2o7b2o2$b2o7b2o$o2bo5b o2bo$o3bo3bo3bo$o4bobo4bo$5bobo$2b3o3b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 3 ZOOM 18 HEIGHT 600 THEME Book STARTFROM 24 ]]

48P24 (February 2015) (click above to open LifeViewer) Catagolue: here

x = 17, y = 17, rule = B357/S238 3b3o$4b2o$5bo$o$2o6bo$3o5bo$8bo2$4b3o3b3o2$8bo$8bo5b3o$8bo6b2o$16bo$11bo$11b2o$11b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 3 ZOOM 18 HEIGHT 600 THEME Book STARTFROM 34 ]]

36P34 (May 2015) (click above to open LifeViewer) Catagolue: here

x = 12, y = 11, rule = B357/S238 o2bo4bo2bo$o3bo2bo3bo$o10bo$bo8bo$2b3o2b3o2$2b3o2b3o$bo8bo$o10bo$o3bo2bo3bo$o2bo4bo2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 3 ZOOM 18 HEIGHT 600 THEME Book STARTFROM 35 ]]

36P35 (February 2015) (click above to open LifeViewer) Catagolue: here

x = 7, y = 7, rule = B357/S238 2bo$bo$o5bo$o5bo$o5bo$bo$2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 3 ZOOM 30 HEIGHT 600 THEME Book STARTFROM 36 ]]

10P36 (February 2015) (click above to open LifeViewer) Catagolue: here

x = 25, y = 25, rule = B357/S238 12bo$11bobo$11bobo$11bobo2$10bobobo$11bobo4$5bo13bo$b3o2bo5bo5bo2b3o$ o4bo5bobo5bo4bo$b3o2bo5bo5bo2b3o$5bo13bo4$11bobo$10bobobo2$11bobo$11b obo$11bobo$12bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 3 ZOOM 15 HEIGHT 600 THEME Book STARTFROM 48 ]]

52P48 (May 2015) (click above to open LifeViewer) Catagolue: here

x = 8, y = 8, rule = B357/S238 3o2b3o2$o2b2o2bo$o6bo$o6bo$o2b2o2bo2$3o2b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 3 ZOOM 24 HEIGHT 600 THEME Book STARTFROM 64 ]]

24P64 (March 2015) (click above to open LifeViewer) Catagolue: here

x = 10, y = 7, rule = B357/S238 b3o2b3o$o8bo$o3b2o3bo$3bo2bo$3bo2bo$2bo4bo$3bo2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 3 ZOOM 24 HEIGHT 600 THEME Book STARTFROM 98 ]]

20P98 (February 2015) (click above to open LifeViewer) Catagolue: here

Spaceships

x = 7, y = 4, rule = B357/S238 2b3o$bo3bo$o2bo2bo$3ob3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 4 ZOOM 24 HEIGHT 500 Y -4 THEME Book STARTFROM 10 ]]

13P5H2V0 (glider 3736) (Robert Wainwright, 1994) (click above to open LifeViewer) Catagolue: here

x = 7, y = 7, rule = B357/S238 2bo$b3o$o3bo$bo2bo$3b2obo$6bo$4bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 4 ZOOM 24 HEIGHT 500 Y -2 THEME Book STARTFROM 6 ]]

14P3H1V0 (glider 4793) (Nathan Thompson, 1994) (click above to open LifeViewer) Catagolue: here

x = 7, y = 7, rule = B357/S238 3bo$b2ob2o$o2bo2bo$obobobo$3bo$bo3bo$bobobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 4 ZOOM 24 HEIGHT 500 Y -2 THEME Book STARTFROM 4 ]]

18P2H1V0 (glider 4716) (Nathan Thompson, 1994) (click above to open LifeViewer) Catagolue: here

x = 9, y = 9, rule = B357/S238 6bobo$6b2o$3bo3bo$bo2bobo$o4bo$2ob2o$b2obo$2b2o$3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 4 ZOOM 24 HEIGHT 500 X -2 Y 2 THEME Book STARTFROM 8 ]]

21P4H1V1 (click above to open LifeViewer) Catagolue: here

x = 11, y = 11, rule = B357/S238 5b2o$5bobo$4bo2bo$bo2b2ob3o$bo2b3o3bo$bo3b3ob2o$3bo2b3o$3b2o$o$o4b3o$3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 4 ZOOM 24 HEIGHT 500 X -2 Y 2 THEME Book STARTFROM 8 ]]

37P4H1V1 (click above to open LifeViewer) Catagolue: here

x = 16, y = 18, rule = B357/S238 bo12bo$3o10b3o$3o10b3o$b4o6b4o$4bo6bo$3b3o4b3o3$4bo6bo$2bo2bo4bo2bo$2b o10bo$3bo8bo$6bo2bo$3bob2o2b2obo$3bo2bo2bo2bo$5b2o2b2o$4b3o2b3o$5b2o2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 4 ZOOM 20 HEIGHT 500 Y -2 THEME Book STARTFROM 12 ]]

52P6H1V0 (lordlouckster, 2022) (click above to open LifeViewer) Catagolue: here

x = 13, y = 36, rule = B357/S238 3bo5bo$2b4ob4o$2bo2bobo2bo$4bo3bo$4b2ob2o$4bo3bo$5bobo$3b3ob3o$2bo2bob o2bo$b5ob5o$2b2o5b2o2$3b2o3b2o$bobo5bobo$2b2o5b2o$3bo5bo$bobo5bobo$o2b o5bo2bo$b2o7b2o$2bob2ob2obo$3bobobobo$3o7b3o2$2o9b2o$2b2o2bo2b2o$3b2ob ob2o$5b3o$2b2o5b2o$b3o5b3o$b3o5b3o$2bo7bo$b2o7b2o2$o11bo$obo7bobo$b2o 7b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL ZOOM 12 THUMBSIZE 3 WIDTH 600 HEIGHT 600 Y -2 THEME Book STARTFROM 8 ]]

c/4 orthogonal (139P4H1V0) (click above to open LifeViewer) Catagolue: here

x = 35, y = 33, rule = B357/S238 4bo5bo12bo7bo$4b2o3b2o12bo7bo$2bo2bo3bo2bo10b2o5b2o$bo11bo$bo3bo3bo3bo 11b2ob2o$bo2b2o3b2o2bo12bobo$2b2ob2ob2ob2o9b2o2bobo2b2o$o2bo7bo2bo7bo 3bobo3bo$o13bo6b2o3bobo3b2o$22b2o7b2o$2bobo5bobo11b3ob3o$4b3ob3o11b4o 3b4o$4bobobobo$4bobobobo10b3o7b3o$3b2obobob2o9bo11bo$4bobobobo$5b2ob2o 11bo11bo$5bo3bo11bo11bo$3bo7bo9bo11bo$2bobo5bobo7b2o11b2o$b5o3b5o6b2ob 2o5b2ob2o$b2o9b2o8b3o2bo2b3o$3o9b3o8bob5obo$23bo2bobo2bo$2o2b2o3b2o2b 2o9bo5bo$4b2o3b2o13bo5bo$4bo5bo13bo5bo$2bo3bobo3bo10b9o$bo4bobo4bo9bo 7bo$bobobo3bobobo$bob2o5b2obo13bo$27bo$26bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL ZOOM 12 THUMBSIZE 3 WIDTH 600 HEIGHT 530 Y -2 THEME Book STARTFROM 10 ]]

c/5 orthogonal: left: 130P5H1V0 (Evan Clark, 2006); right: 113P5H1V0 (lordlouckster, 2022) (click above to open LifeViewer)

x = 11, y = 27, rule = B357/S238 2b7o$2bo5bo$5bo$2bo5bo$2b3ob3o$3bo3bo$2bobobobo$3b5o$b2obobob2o$b2o5b 2o$3bobobo$b3o3b3o$2o7b2o$3o2bo2b3o$2b3ob3o5$b2o5b2o$bo7bo$bo7bo$4b3o$ 3b5o$5bo$5bo$5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL ZOOM 12 THUMBSIZE 3 WIDTH 600 HEIGHT 500 Y -4 THEME Book STARTFROM 12 ]]

2c/6 orthogonal (84P6H2V0). Two copies of it can support the flipping variant of the crotchet tagalong reaction (click above to open LifeViewer) Catagolue: here

x = 88, y = 15, rule = B357/S238 13bo8bo19bo37bo$o3b2o3bo4bo6bo2bo18bo6bo2b2o20b2ob2o$bob3o2bo2bo2bo9bo 17b2obo5b5o7bo10bo5bobobo$b2ob2o2b2o4b2o2bo2bob2o20bo3bob2o5b2o2bo4bo 3b2o2b2ob2o4bo$bobobo2bo3b2o4bo8bo2b2o11b2o2b4o3bob3obobo5bob2o2b3o3bo 3b3o$2obobo3bobobo4b2obobo3bo3bo2b2o4b3o3b2o10b3obobo3bobo2b5o7b3o$4bo bo11b2o2bo4bo2bo2bo2bob5o3b3o6bo2b2o4b2obo3b2ob3o8b2o$2bobobo12bo2bo 10bo2bobob3o3bo$4bobo11b2o2bo4bo2bo2bo2bob5o3b3o6bo2b2o4b2obo3b2ob3o8b 2o$2obobo3bobobo4b2obobo3bo3bo2b2o4b3o3b2o10b3obobo3bobo2b5o7b3o$bobob o2bo3b2o4bo8bo2b2o11b2o2b4o3bob3obobo5bob2o2b3o3bo3b3o$b2ob2o2b2o4b2o 2bo2bob2o20bo3bob2o5b2o2bo4bo3b2o2b2ob2o4bo$bob3o2bo2bo2bo9bo17b2obo5b 5o7bo10bo5bobobo$o3b2o3bo4bo6bo2bo18bo6bo2b2o20b2ob2o$13bo8bo19bo37bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL ZOOM 8 THUMBSIZE 2 WIDTH 1100 X 2 THEME Book STARTFROM 14 ]]

c/7 orthogonal (323P7H1V0) (lordlouckster, 2022) (click above to open LifeViewer) Catagolue: here

x = 117, y = 17, rule = B357/S238 2bo105bo$bobo2bo8b2o9b3o9bo7b3o17b2o39bo2bo2bo$o3b2obo6bo11bobo9bo2bo 2b2o3bo3bo4b2o6b3o25b2o18bo$b2ob2o7bo2b2o2b3ob3o11bo6b2obo2bo5b3o5b3ob 2o4bo13b2o5bo10b3o4bo$2b3obo2b3o3bobob2obob2ob5o6b2ob3o2b3obo3b5o2b5o 4bo3bobob2o8bob3o2b3o6bo4bob3ob2o$3bo2bo2bo4bo5b6o4b5o15b2o2b4o3b2o4b 3o2b2ob3o2bo8b3o2b3o3bo3bo4b4o2b2o$2bo2bo3bobo2b4o3bo4b2o4bobob4o10bo 2b3o6bob2ob2o5b2obo2bo4b2o3b2obobo3bo4bo2bo4bob3o$3b3o3b2o4bo18b3o2bo 10bobo2b2o9bo9bo3b2o2b3o4bob2o4bobobo3bo$34b3o2b3o7b5o24bo3b3obo5b3o4b o3bo$3b3o3b2o4bo18b3o2bo10bobo2b2o9bo9bo3b2o2b3o4bob2o4bobobo3bo$2bo2b o3bobo2b4o3bo4b2o4bobob4o10bo2b3o6bob2ob2o5b2obo2bo4b2o3b2obobo3bo4bo 2bo4bob3o$3bo2bo2bo4bo5b6o4b5o15b2o2b4o3b2o4b3o2b2ob3o2bo8b3o2b3o3bo3b o4b4o2b2o$2b3obo2b3o3bobob2obob2ob5o6b2ob3o2b3obo3b5o2b5o4bo3bobob2o8b ob3o2b3o6bo4bob3ob2o$b2ob2o7bo2b2o2b3ob3o11bo6b2obo2bo5b3o5b3ob2o4bo 13b2o5bo10b3o4bo$o3b2obo6bo11bobo9bo2bo2b2o3bo3bo4b2o6b3o25b2o18bo$bob o2bo8b2o9b3o9bo7b3o17b2o39bo2bo2bo$2bo105bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL ZOOM 8 THUMBSIZE 2 WIDTH 1100 X 4 THEME Book STARTFROM 14 ]]

2c/7 orthogonal (482P7H2V0) (lordlouckster, 2022) (click above to open LifeViewer) Catagolue: here

Guns

A gun had been constructed and published by confocaloid on December 28, 2023 . It shoots a 2c/5 orthogonal glider 3736 in each period (1078).

Soup search

See also: Catagolue, Tutorials/Contributing to Catagolue

By July 2021, the b357s238/C1 census on Catagolue accumulated 750 million objects. The C1 census reached a total of 30 billion objects on March 16, 2023.

Simulation of circuits

The most promising way to get a constructive proof for weak Turing-completeness in the future, is glider circuitry, a plausible method to construct W110 unit cells. On May 27, 2023, user confocaloid constructed a 90-degree periodic reflector for the glider 3736 using period 98 oscillators, with several variants including transparent output lanes.

External links

• Pseudo Life at Adam P. Goucher's Catagolue
• Pseudo Life (B357/S238) (discussion thread) at the ConwayLife.com forums
• MCell built-in Life rules: Pseudo life at Mirek Wójtowicz's Cellebration page
• Interesting Rules at Fano Experimental Web Server (archived copy)