Middleweight spaceship

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Middleweight spaceship
3bo$bo3bo$o$o4bo$5o! #C [[ THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ TRACKLOOP 4 -1/2 0 THUMBSIZE 2 GPS 4 ]]
Pattern type Spaceship
Family XWSS
Number of cells 11
Bounding box 6×4
Frequency class 13.2
Direction Orthogonal
Period 4
Mod 2
Speed c/2
Speed (unsimplified) 2c/4
Heat 15
Discovered by John Conway
Year of discovery 1970

The middleweight spaceship (commonly abbreviated to MWSS) or (rarely) medium fish is the third most common spaceship after the glider and lightweight spaceship. It was found by John Conway in 1970 and travels at c/2 orthogonally. It can support various non-standard components, such as pushalong 1.


The MWSS occured about one fourth as commonly as the LWSS in soups investigated by Achim Flammenkamp.[1] It is also the twenty-third most common object on Adam P. Goucher's Catagolue.[2]

See also


  1. "Spontaneous appeared Spaceships out of Random Dust". Achim Flammenkamp (December 9, 1995). Retrieved on August 18, 2011.
  2. Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.

External links

  • 11P4H2V0.1 at Heinrich Koenig's Game of Life Object Catalogs