User:Atavoidirc/Spaceship table: Difference between revisions

Latest revision as of 21:57, 10 January 2026

The following table displays all known spaceship speeds and directions that are reasonably small (<1000 cells).

Speed	Smallest known	Min. population	First found	Discoverer	Year found
Orthogonal speeds
c/2	64P2H1V0	32	64P2H1V0^{[note 1]}	Dean Hickerson	1971
2c/4	lightweight spaceship	9	lightweight spaceship	John Conway	1970
8c/16	Coe ship	28	Coe ship	Tim Coe	1995
10c/20	Sidewinder	32	Ecologist	Bill Gosper	1971
3c/7	232P7H3V0	232	spaghetti monster	Tim Coe	2016
2c/5	30P5H2V0	30	44P5H2V0	Dean Hickerson	1991
c/3^{[note 2]}	25P3H1V0.1, 25P3H1V0.2	25	84P3H1V0.1	Dean Hickerson	1989
2c/7	weekender	36	weekender	David Eppstein	2000
c/4	37P4H1V0	37	119P4H1V0	Dean Hickerson	1989
c/5	spider	58	snail	Tim Coe	1996
c/6	56P6H1V0	56	dragon	Paul Tooke	2000
c/7	loafer	20	loafer	Josh Ball	2013
c/10	copperhead	28	copperhead	zdr	2016
Diagonal speeds
c/4	glider	5	glider	Richard K. Guy	1970
c/5	58P5H1V1	58	295P5H1V1	Jason Summers	2000
c/6	77P6H1V1	77	seal	Nicolay Beluchenko	2005
c/7	lobster	83	lobster	Matthias Merzenich	2011
c/8	walrus	68	walrus	Adam P. Goucher	2023
c/12	2-engine Cordership	100	13-engine Cordership	Dean Hickerson	1991
Knightships (slope 2)
(2,1)c/6	Sir Robin	282	Sir Robin	Adam P. Goucher and Tomas Rokicki	2018

This spaceship has occurred from an asymmetric soup.
This spaceship has occurred from a symmetric soup.
This spaceship is an elementary spaceship.

↑ Although Hickerson does not remember which specific c/2 spaceship was discovered first, this was among the earliest.
↑ Although neither the first nor the smallest known c/3 spaceships have appeared on Catagolue, the speed as a whole is semi-natural, as on March 4, 2022, a symmetric soup was found containing a dart.^[1]

↑ cvojan (March 4, 2022). Re: Soup search results (discussion thread) at the ConwayLife.com forums

@@ Line 23: / Line 23: @@
 | style="background-color:#c6efce;" | {{year|1971}}
 |-
-! style="background-color:#dfdfff;" | [[2c/4 orthogonal|2c/4]]
+! style="background-color:#dfdfff;" | [[c/2 orthogonal|2c/4]]
 | style="background-color:#dfdfff;" | [[lightweight spaceship]]
 | style="background-color:#dfdfff;" | {{cells|9}}
@@ Line 31: / Line 31: @@
 | style="background-color:#dfdfff;" | {{year|1970}}
 |-
-! style="background-color:#cfffff;" | [[8c/16 orthogonal|8c/16]]
+! style="background-color:#cfffff;" | [[c/2 orthogonal|8c/16]]
 | style="background-color:#c6efce;" | [[Coe ship]]
 | style="background-color:#c6efce;" | {{cells|28}}
@@ Line 39: / Line 39: @@
 | style="background-color:#c6efce;" | {{year|1995}}
 |-
-! style="background-color:#c6efce;" | [[10c/20 orthogonal|10c/20]]
+! style="background-color:#c6efce;" | [[c/2 orthogonal|10c/20]]
 | style="background-color:#c6efce;" | [[Sidewinder]]
 | style="background-color:#c6efce;" | {{cells|32}}