OCA:Diamoeba
Diamoeba  


Rulestring  5678/35678 B35678/S5678 


Rule integer  246248  
Character  Stable  
Black/white reversal  B45678/S4678 
Diamoeba is a Lifelike cellular automaton where cells are born if they have 3, 5, 6, 7, or 8 neighbors, and survive if they have 58 neighbors.
Diamoeba is known for its dynamics. Small random soups often dissolve into vacuum or small oscillators while larger soups often generate large oscillating diamonds.
Contents
Known Objects
Oscillators
There are many oscillators in Diamoeba, although all of the currently known ones are of even period. Below is a collection of the smallest known oscillators (by cell count) from periods 2 until 14.
(click above to open LifeViewer) 
Spaceships
All known spaceships are orthogonal and no spaceship faster than c/7 orthogonal is currently known. Below is a display of the smallest known spaceships (by cell count) of each known speed.
From left to right: c/7o (David Eppstein)^{[1]}, c/9o ("djgjs")^{[2]}, c/16o (Dongook Lee)^{[3]} (click above to open LifeViewer) 
Infinite Growth
There are four known infinite growth patterns so far, a c/7 orthogonal wickstretcher found by David Bell^{[4]}, a quarterspacefiller also found by David Bell^{[5]} of the same speed, a spacefiller yet again by David Bell^{[6]} based on a spaceship, and a c/7 orthogonal wickstretcher found by Arie Paap^{[7]}.
(click above to open LifeViewer) 
References
 ↑ David Eppstein (11 March 1999  24 March 1999). "Patterns for other Lifelike rules". diamoebac7f.lif. Retrieved on 29 April 2020.
 ↑ djgjs (13 August 2015). "Re: Gliders in diamoeba". ConwayLife.com forums. Retrieved on 29 April 2020.
 ↑ Dongook Lee (14 August 2015). "Re: Gliders in diamoeba". ConwayLife.com forums. Retrieved on 29 April 2020.
 ↑ David Bell (3 February 2000). "Patterns for other Lifelike rules". diamoebaws.lif. Retrieved on 29 April 2020.
 ↑ David Bell (12 March 1999). "Patterns for other Lifelike rules". diamoebaqsf.lif. Retrieved on 29 April 2020.
 ↑ David Bell (11 March 1999). "Patterns for other Lifelike rules". diamoebasf.lif. Retrieved on 29 April 2020.
 ↑ Arie Paap (14 August 2015). "Re: Gliders in diamoeba". ConwayLife.com forums. Retrieved on 29 April 2020.