Puffer 1

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Puffer 1
x = 27, y = 7, rule = B3/S23 b3o6bo5bo6b3o$o2bo5b3o3b3o5bo2bo$3bo4b2obo3bob2o4bo$3bo19bo$3bo2bo13bo 2bo$3bo2b2o11b2o2bo$2bo3b2o11b2o3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ ZOOM 20 AUTOSTART OFF ]]
Pattern type Puffer
Number of cells 44
Bounding box 27×7
Direction Orthogonal
Period 128
Speed c/2
Discovered by Bill Gosper
Year of discovery 1971

Puffer 1 was the first puffer to be found, and was discovered by Bill Gosper in 1971.[1] The debris that it leaves behind are groups of four blinkers and a pair of cis-mirrored bookends, as shown below. The debris can be cleaned up and converted into gliders to create a rake as in backrake 3.

Puffer 1 first appeared semi-naturally in March 2016.[2] Before this, a puffer with a similar construction but a different ash and period appeared in a soup found by Richard Schank in December 2014.[3]

Gallery

See also

References

  1. Robert Wainwright (September 1971). Lifeline, vol 3, page 6.
  2. praosylen (March 28, 2016). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  3. Richard Schank (December 19, 2014). Re: Soup search results (discussion thread) at the ConwayLife.com forums

External links