46P4H1V0
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46P4H1V0  
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Pattern type  Spaceship  

Number of cells  46  
Bounding box  21×10  
Direction  Orthogonal  
Period  4  
Mod  4  
Speed  c/4  
Speed (unsimplified)  c/4  
Heat  54.0  
Discovered by  Tim Coe  
Year of discovery  1996  
 
 
 

46P4H1V0 is an unnamed c/4 orthogonal spaceship discovered by Tim Coe in May 1996.^{[1]} It was the smallest known c/4 orthogonal spaceship until the discovery of 37P4H1V0.
It was the first c/4 spaceship for which a complete glider synthesis was found, by Tanner Jacobi and Martin Grant on Febuary 4, 2019 with 105 gliders.^{[2]} This was later reduced to 88 gliders with a repeat time of 572 ticks due to optimizations by various people.^{[3]}
See also
References
 ↑ race.rle from Stephen Silver's January 12, 2004 'ships' collection.
 ↑ Martin Grant (February 4, 2019). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
 ↑ Matthias Merzenich (February 10, 2019). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
External links
 46P4H1V0.1 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
 Patterns
 Patterns with 46 cells
 Patterns found by Tim Coe
 Patterns found in 1996
 Patterns that can be constructed with 88 gliders
 Spaceships
 Periodic objects with minimum population 46
 Spaceships with period 4
 Orthogonal spaceships
 Spaceships with speed c/4
 Spaceships with unsimplified speed c/4
 Spaceships with heat 54
 Spaceships with mod 4
 Nonmonotonic spaceships
 Patterns with bilateral orthogonal symmetry
 Unnamed periodic objects