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{{Rule
|name            = Coagulations
|char            = Explosive
|b              = 378
|s              = 235678
|reversal        = B478/S234678
|ruleinteger    = 252296
}}
'''Coagulations''' is a [[Life-like cellular automaton]]. Its rulestring is B378/S235678, which means that a cell is born when it has 3, 7 or 8 alive neighbours, and an alive cell survives when it has 2, 3, 5, 6, 7 or 8 alive neighbours.
 
Randomly generated patterns as small as the [[R-pentomino]] evolve into infinitely expanding chaos, which slowly settles down in its central part, resembling the process of [https://en.wikipedia.org/wiki/Coagulation blood coagulation].
 
{{EmbedViewer
|rle = x = 3, y = 3, rule = B378/S235678
b2o$2o$bo!
|position = center}}
 
==Notable patterns==
===Still lives===
 
All patterns that are stable in [[Life]] are also stable in Coagulations, because no still life from B3/S23 can trigger the B7 or B8 birth condition. Additionally, due to more survival conditions, many patterns unstable in Life also are still lives in Coagulations:
 
{{EmbedViewer
|rle = x = 48, y = 16, rule = B378/S235678
39b2o$39b2o$20bo2bo13bob2obo$18b8o10bob4obo$18b8o9bob6obo$2bo6bobo5b
10o7bob8obo$5o2b7o4b8o9b10o$5o2b7o3b10o5b16o$2bo6bobo6b8o6b16o$17b10o
8b10o$18b8o8bob8obo$18b8o9bob6obo$20bo2bo12bob4obo$37bob2obo$39b2o$39b
2o!
|position = center}}
 
===Oscillators===
Many oscillators from Life also work in Coagulations.
{{EmbedViewer
|rle = x = 32, y = 5, rule = B378/S235678
o6bo5b2o7bo7b2o$o4bo2bo4bo6b2o9bo$o4bo2bo7bo5b2o4bobo$6bo8b2o4bo5bo$
27b2o!
|position = center}}
 
Out of the [[List of common oscillators|most common Life oscillators]], [[pulsar]] and [[pentadecathlon]] don't work, as pulsar triggers the S5 condition in one of its phases, and pentadecathlon triggers multiple conditions at once. Pulsar disappears entirely, while pentadecathlon evolves into a larger p5 oscillator.
 
{{EmbedViewer
|rle = x = 37, y = 13, rule = B378/S235678
2b3o3b3o2$o4bobo4bo$o4bobo4bo$o4bobo4bo$2b3o3b3o18bo4bo$27b2ob4ob2o$2b
3o3b3o18bo4bo$o4bobo4bo$o4bobo4bo$o4bobo4bo2$2b3o3b3o!
|position = center}}
 
 
 
===Spaceships===
 
 
==Reversal rule==
===Still lives===
 
 
===Oscillators===
 
 
===Spaceships===
 
==See also==
*{{rl|Stains}}
 
==External links==
* {{LinkForumThread|format=ref|p=43359|title=Coagulations (B378/S235678)}}
* {{LinkForumThread|format=ref|p=2706|title=Inverse of "Coagulations" rule (B478/S234678)}}
* [https://english.rejbrand.se/rejbrand/article.asp?ItemIndex=414 Coagulations on Andreas Rejbrand’s Website]
 
[[Category:Life-like cellular automata]]

Latest revision as of 10:55, 3 August 2026

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