25P3H1V0.2

25P3H1V0.2 is a c/3 orthogonal edge-repair spaceship that was found by David Bell in 1992. With 25 cells, it is tied with 25P3H1V0.1 as the smallest c/3 spaceship.[1] The final step for a glider synthesis of this ship was found by Martin Grant on December 15, 2017,[2] which was turned into a complete 26-glider synthesis on December 31 due to contributions by various people.[3]

25P3H1V0.2
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Pattern type Spaceship
Number of cells 25
Bounding box 16×8
Direction Orthogonal
Period 3
Mod 3
Speed c/3
Speed (unsimplified) c/3
Heat 21.3
Discovered by David Bell
Year of discovery 1992

See also

References
  1. c3.rle from Stephen Silver's January 12, 2004 'ships' collection.
  2. Martin Grant (December 15, 2017). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  3. Chris Cain (December 31, 2017). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  • 25P3H1V0.2 at Heinrich Koenig's Game of Life Object Catalogs
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