25P3H1V0.2

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25P3H1V0.2
x = 16, y = 8, rule = B3/S23 10bo$8b3ob3o$7b2o6bo$2bo3bo2bo3b2o$b4o$o3bo$bobo2bo$5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ TRACKLOOP 3 0 -1/3 THUMBSIZE 2 GPS 3 HEIGHT 400 ]]
Pattern type Spaceship
Number of cells 25
Bounding box 16 × 8
Direction Orthogonal
Period 3
Mod 3
Speed c/3 | c/3
Heat 21.3
Discovered by David Bell
Year of discovery 1992

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] It has edge-repair capacities, and a Fly can be attached to it.

Occurrence

See also: List of common spaceships

At 25 cells, it is one of the three smallest spaceships yet to appear from soup, alongside crab and 25P3H1V0.1.

Glider synthesis

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] A 24-glider synthesis was found by iNoMed on July 6, 2021.[4] The synthesis was reduced to 23 gliders on April 14, 2023, when the cost of the base 14-cell still life[5] was reduced from 6 to 5 gliders.[6] The synthesis was reduced to 22 gliders on November 25, 2023.[7]

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
  4. iNoMed (July 6, 2021). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  5. xs14_j5s246z11 at Adam P. Goucher's Catagolue
  6. shinjuku (#4114864376) (April 14, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
  7. shinjuku (#5616586473) (November 25, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.

External links