Jason's p22

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Jason's p22
x = 27, y = 10, rule = B3/S23 2o$bo$bobo13b3o$2b2o3bo8bo3bo$6bob2o6bo4bo$5bo4bo6b2obo$6bo3bo8bo3b2o$ 7b3o13bobo$25bo$25b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 5 ZOOM 18 LOOP 22 ]]
Pattern type Oscillator
Number of cells 36
Bounding box 27×14
Period 22
Mod 22
Heat 35.6
Volatility 0.93
Strict volatility 0.93
Discovered by Jason Summers
Year of discovery 2000
For the period-36 oscillator, see 22P36.

Jason's p22 (or 36P22) is an unnamed period-22 oscillator discovered by Jason Summers on August 27, 2000.[1] It is composed of an unnamed reaction stabilized by two copies of eater 1. In terms of its 36 cells, it is the smallest known period 22 oscillator, followed by beacon on 38P11.1 and champagne glass with 40 and 45 cells, respectively.[2] Later on the day of the oscillator's discovery, David Eppstein found a way to combine two of them to produce the first true period 22 gun.[3] In February 2001 Jason Summers found a 12-glider synthesis of this oscillator,[4] which was improved to 11 gliders by 2718281828 in December 2017[5] and later 10 by Mark Niemiec in September 2019.[6]

See also


  1. Jason Summers' all-osc pattern collection.
  2. "Class 2 Objects Catalog". Retrieved on April 9, 2009.
  3. "true". The Life Lexicon. Stephen Silver. Retrieved on July 7, 2009.
  4. Jason Summers' jslife pattern collection.
  5. 2718281828 (December 6, 2017). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  6. Mark Niemiec (September 30, 2019). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums

External links

  • 36P22.1 at Heinrich Koenig's Game of Life Object Catalogs