Six Ls

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Six Ls
x = 7, y = 8, rule = B3/S23 3bo$b3o2bo$o3b3o$3o$4b3o$3o3bo$o2b3o$3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 2 ZOOM 20 LOOP 3 ]]
Pattern type Oscillator
Oscillator type Billiard table
Number of cells 24
Bounding box 7×8
Period 3
Mod 3
Heat 2.7
Volatility 0.15
Strict volatility 0.15
Rotor type Six Ls
Discovered by Unknown
Year of discovery Unknown

Six Ls is a period-3 oscillator that can be thought of as a compact form of loading dock, as they share the same rotor, but six Ls has a narrower stator. Its name comes from the fact that it is composed of six L tetrominoes (tails).


A 20-glider synthesis was found by Jeremy Tan on March 29, 2019 based on a soup submitted to Catagolue.[1] This was improved to 18 gliders by Mark Niemiec two days later.[2]


  1. Jeremy Tan (March 29, 2019). Re: Synthesising Oscillators (discussion thread) at the forums
  2. Mark Niemiec (March 31, 2019). Re: Synthesising Oscillators (discussion thread) at the forums

External links

  • 24P3.122 at Heinrich Koenig's Game of Life Object Catalogs