HWSS on HWSS 1
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HWSS on HWSS 1  
View static image  
Pattern type  Flotilla Spaceship  

Family  XWSS  
Number of cells  22  
Bounding box  7 × 9  
Frequency class  35.9  
Direction  Orthogonal  
Period  4  
Mod  4  
Speed  c/2  
Speed (unsimplified)  2c/4  
Heat  36.0  
Discovered by  Unknown  
Year of discovery  Unknown  
 
 
 

HWSS on HWSS 1 is a standard spaceship flotilla consisting of two heavyweight spaceships reacting so as to remove their domino sparks.
Commonness
It is the second most common spaceship flotilla (and sixth most common spaceship overall) on Catagolue, being 3.32 times less common than MWSS on MWSS 1 but 2.56 times more common than LWSS on MWSS 1.^{[1]}
HWSS on HWSS 1 first appeared seminaturally in September 2014 in a soup found by Josh Ball.^{[2]} It later appeared in an asymmetric soup on April 17, 2015.^{[3]}
References
 ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on July 18, 2019.
 ↑ Josh Ball (September 28, 2014). Re: Soup search results (discussion thread) at the ConwayLife.com forums
 ↑ gameoflifeboy (April 17, 2015). Re: Soup search results (discussion thread) at the ConwayLife.com forums
External links
 22P4H2V0.2 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
 Patterns
 Patterns with Catagolue frequency class 35
 Natural periodic objects
 Spaceships with 22 cells
 Periodic objects with minimum population 22
 Patterns with 22 cells
 Patterns that can be constructed with 6 gliders
 Spaceships
 Flotillas
 Spaceships with period 4
 Orthogonal spaceships
 Spaceships with speed c/2
 Spaceships with unsimplified speed 2c/4
 Spaceships with heat 36
 XWSS variants
 Spaceships with mod 4
 Patterns with bilateral orthogonal symmetry