46P4H1V0

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46P4H1V0
3bo11bo3b$3bo11bo3b$2bobo9bobo2b2$bo3bo7bo3bob$bob6ob6obob$o7bobo7bo$o 7bobo7bo$o17bo$bob2ob2o3b2ob2obo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ TRACKLOOP 4 0 -1/4 THUMBSIZE 2 GPS 4 HEIGHT 480 WIDTH 480 ]]
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

  1. race.rle from Stephen Silver's January 12, 2004 'ships' collection.
  2. Martin Grant. Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  3. Matthias Merzenich. Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums

External links

  • 46P4H1V0.1 at Heinrich Koenig's Game of Life Object Catalogs