55P9H3V0

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55P9H3V0
x = 21, y = 13, rule = B3/S23 6b3o3b3o$2bob2o3bobo3b2obo$b3o3bobobobo3b3o$o3bo4bobo4bo3bo$bo7bobo7bo $8bobobo$8bobobo2$10bo$9bobo$7b2o3b2o$7bobobobo$7b2o3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ TRACKLOOP 9 0 -1/3 THUMBSIZE 2 GPS 3 ]]
Pattern type Spaceship
Number of cells 55
Bounding box 21×13
Direction Orthogonal
Period 9
Mod 9
Speed c/3
Speed (unsimplified) 3c/9
Heat 40.4
Discovered by Paul Tooke
Year of discovery 2001

55P9H3V0 is a c/3 orthogonal spaceship discovered by Paul Tooke in June 2001. It is the smallest known spaceship with an unsimplified speed of 3c/9. On September 19, 2020, Goldtiger997 found a 271-glider synthesis for this spaceship, making it the first period-9 spaceship to be synthesized.[1]

References

  1. Goldtiger997 (September 19, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums

External links