Difference between revisions of "Loafer"

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|rulemax          = B378/S23678
|rulemax          = B378/S23678
|rulespecial      = [[Conway's Game of Life|Conway Life]], [[DryLife]]
|rulespecial      = [[Conway's Game of Life|Conway Life]], [[DryLife]]
|isorulemin      = B3-k/S23
|isorulemax      = B34ceq5acen6acn78/S234cejknwy5-ijnq678
|synthesis        = 8
|synthesis        = 8
|synthesisRLE    = true
|synthesisRLE    = true

Revision as of 00:18, 14 January 2019

x = 9, y = 9, rule = B3/S23 b2o2bob2o$o2bo2b2o$bobo$2bo$8bo$6b3o$5bo$6bo$7b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ AUTOFIT TRACKLOOP 7 -1/7 0 THUMBSIZE 2 GPS 5 HEIGHT 480 WIDTH 480 ]]
Pattern type Spaceship
Number of cells 20
Bounding box 9×9
Direction Orthogonal
Period 7
Mod 7
Speed c/7
Speed (unsimplified) c/7
Heat 14.6
Discovered by Josh Ball
Year of discovery 2013

Loafer (also the loafer) is a c/7 orthogonal spaceship found by Josh Ball on February 17, 2013. Its name refers to its slow speed and loaf-pushing behaviour.

It is the fifth smallest known spaceship in terms of cell count (after glider, lightweight spaceship, middleweight spaceship and heavyweight spaceship), excluding some nontrivial flotillae. Despite this, it has not been seen to come out of soup.


Adam P. Goucher found an 18-glider synthesis for this spaceship on the day of its discovery which Matthias Merzenich reduced to 8 gliders the following day.[1] Two loafer guns were built by Shannon Omick on February 19th of the same year, using these syntheses.[2]

Uses and reactions

Paul Tooke built a sawtooth that uses loafer's ability to turn a middleweight spaceship into a loaf.[3]

Mike Playle found a stable loafer-to-Herschel conduit, apparently by means of the same search program (or its earlier version), that gave the world the snark a month and a half later.[4]

On 11 June 2016, Simon Ekström created a loafer-to-glider conduit, based on a loafer-to-pi found by Aidan F. Pierce.[5][6]

The loafer can be cleanly destroyed by an eater 1 positioned at the loafer's foot.


Loafer about to get eaten by an eater 1.

See also


  1. Adam P. Goucher (March 10, 2013). "c/7 Orthogonal Spaceship". Retrieved on March 16, 2013.
  2. Shannon Omick (February 18, 2013). Re: c/7 orthogonal spaceships (discussion thread) at the ConwayLife.com forums
  3. Paul Tooke (February 22, 2013). Re: c/7 orthogonal spaceships (discussion thread) at the ConwayLife.com forums
  4. Mike Playle (March 9, 2013). Re: c/7 orthogonal spaceships (discussion thread) at the ConwayLife.com forums
  5. Aidan F. Pierce (18 February 2015). Re: The Hunting of the New Herschel Conduits (discussion thread) at the ConwayLife.com forums
  6. Simon Ekström (11 June 2016). Re: Thread For Requesting Help (discussion thread) at the ConwayLife.com forums

External links