46P4H1V0

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.

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

It was the first c/4 orthogonal 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] Goldtiger997 constructed a 46P4H1V0 gun based on this synthesis on October 22.[4]

See also

References
  1. race.rle from Stephen Silver's January 12, 2004 'ships' collection.
  2. Martin Grant (February 4, 2019). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  3. Matthias Merzenich (February 10, 2019). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  4. Goldtiger997 (October 22, 2019). Re: Stable signal converters (discussion thread) at the ConwayLife.com forums
  • 46P4H1V0.1 at Heinrich Koenig's Game of Life Object Catalogs
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