Lightweight emulator

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Lightweight emulator
2b2obo2bob2o$2bo8bo$3b2o4b2o$3o2b4o2b3o$o2bo6bo2bo$b2o8b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ LOOP 4 GPS 2 THUMBSIZE 2 ]]
Pattern type Oscillator
Family Emulator
Number of cells 30
Bounding box 14 × 6
Period 4
Mod 4
Heat 12
Volatility 0.45
Strict volatility 0.36
Discovered by Robert Wainwright
Year of discovery 1980

Lightweight emulator is a period-4 oscillator found by Robert Wainwright in June 1980[1] that produces sparks similar to those produced by the lightweight spaceship. It is the smallest and least useful of the three standard emulators.

This oscillator first appeared semi-naturally in September 2016.[2] A 13-glider synthesis is known for a stator variant featuring loaves; with appropriate component to convert them to pre-blocks, the canonical form can be synthesized from 21 gliders.[3] A bigger yet higher clearance sparker is shown below.

x = 20, y = 18, rule = B3/S23 8bo2bo2$7bo4bo$6bob4obo$3b2o2bo4bo2b2o$6bobo2bobo$3bo4b4o4bo$3bob2o6b 2obo$b2o4b6o4b2o$ob2ob2o6b2ob2obo$2obo2bo2b2o2bo2bob2o$3b2o4b2o4b2o$4o 2bo6bo2b4o$o4bobo4bobo4bo$b3obo8bob3o$3bobob2o2b2obobo$5bo8bo$5b2o6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART GPS 4 ZOOM 12 ]]
A way more accessible p4 lightweight sparker[4]
(click above to open LifeViewer)
RLE: here Plaintext: here

See also


  1. Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  2. praosylen (September 9, 2016). Re: Soup search results (discussion thread) at the forums
  3. iNoMed (April 5, 2021). Re: Synthesising Oscillators (discussion thread) at the forums
  4. James Pascua (May 22, 2021). Re: JP21's Lonely Freedomical Room (discussion thread) at the forums

External links

  • 30P4.5 at Heinrich Koenig's Game of Life Object Catalogs