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x = 14, y = 14, rule = B3/S23 7bo$6b2o$5b2o$4bo$3bob4o$2bobo4bo$b2obob2obo2b2o$2o2bob2obob2o$4bo4bob o$5b4obo$9bo$7b2o$6b2o$6bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 3 GPS 5 ZOOM 24 HEIGHT 500 WIDTH 500 ]]
Pattern type Oscillator
Number of cells 44
Bounding box 14×14
Period 12
Mod 12
Heat 38
Volatility 0.87
Strict volatility 0.87
Discovered by Nicolay Beluchenko
Year of discovery Unknown

44P12.3 is an unnamed period 12 oscillator, discovered by Nicolay Beluchenko.[1][2]

On January 12, 2019, Tanner Jacobi used it along with dueling banjos, a heavyweight emulator variant, and Pipsquirter 1 to build a period 24 glider gun which was then optimized by Matthias Merzenich the next day to be smaller than the previous record holder.[3][4]


  1. Matthias Merzenich. Re: Soup search results (discussion thread) at the ConwayLife.com forums
  2. Jason Summers' pattern collections.
  3. Tanner Jacobi. Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  4. Matthias Merzenich. Re: Execution of Old Guns by Variable-Speed Firing Squad (discussion thread) at the ConwayLife.com forums

External links

  • 44P12.3 at Heinrich Koenig's Game of Life Object Catalogs