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x = 4, y = 4, rule = B3/S23 2bo$bobo$obo$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]] [[ ZOOM 57 ]]
Pattern type Strict still life
Number of cells 6
Bounding box 4 × 4
Frequency class 8.9
Discovered by JHC group
Year of discovery 1970
This article is about the 6-cell still life. For the extensible c/3 spaceship, see Barge (spaceship).

The barge is a common 6-cell still life discovered by the JHC group in 1970.[1] It is infinitely extensible, and can be seen as a long version of the tub.


Main article: List of common still lifes

Barge is the tenth most common still life on Adam P. Goucher's Catagolue, being less common than ship-tie but more common than half-bakery. Among all still lifes with 6 cells, it is the third most common, being less common than ship but more common than aircraft carrier.[2]It is also the fourteenth most common object overall on Catagolue.

In Achim Flammenkamp's census, the barge was also ranked tenth most common, again between the ship-tie and half-bakery.[3]

Glider synthesis

All strict still lifes with a population of 21 or fewer cells, as well as all oscillators and spaceships with 16 or fewer cells, are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.


Barge can be infinitely extended, as illustrated by the following:

Long barge
Very long barge
Long^3 barge
Long^4 barge
Long^5 barge

See also


  1. Dean Hickerson's oscillator stamp collection. Retrieved on June 18, 2009.
  2. Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
  3. Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on June 6, 2013.

External links

No corners (barges) (^-2) • (^-1) • ^0^1^2^3
One corner (boats) (^-2) • (^-1) • ^0^1^2^3
Two corners (ships) (^-1) • ^0^1^2^3