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3bo3bobob6obobo3bo$2bob2obo2bobo2bobo2bob2obo$2bo7b2o4b2o7bo$b2o2bo3bo2b4o2bo3bo2b2o$o2b6ob2o4b2ob6o2bo$2o6b2ob6ob2o6b2o$2b2obo16bob2o$2o2bo8b2o8bo2b2o$bobo2b3o3bo2bo3b3o2bobo$o2b3o5b2o2b2o5b3o2bo$b2o3bob2obo4bob2obo3b2o$2bobo2bob3o4b3obo2bobo$2bob2obo3b6o3bob2obo$b2o2bobobobo4bobobobo2b2o$o2bo7b6o7bo2bo$b2o3bo14bo3b2o$5bo3b4o2b4o3bo$4bob2obo2bo2bo2bob2obo$4bo2b3o8b3o2bo$b2obo2b3o2bo2bo2b3o2bob2o$b2obob2o4b4o4b2obob2o$5bo3bo8bo3bo$6bobo10bobo$4bobobobo6bobobobo$4b2o3b2o6b2o3b2o! #C [[ THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 2 GPS 2 ]]
Pattern type Oscillator
Number of cells 258
Bounding box 28×27
Period 3
Mod 3
Heat 130.7
Volatility 0.54
Strict volatility 0.54
Discovered by Noam Elkies
Year of discovery 1997

258P3 is a period 3 oscillator discovered by Noam Elkies on June 25, 1997.[1] In generation 2 it provides an isolated domino spark which can be used in the creation of higher period oscillators, such as the first known period 33 oscillator, 258P3 on Achim's p11. A related but slightly smaller oscillator was found by Karel Suhajda on January 13, 2003.[2]

Image gallery

Generation 3 reveals the isolated domino spark.
A related domino sparker discovered by Karel Suhajda
Download RLE: click here


  1. Jason Summers' all-osc pattern collection.
  2. Jason Summers' all-osc pattern collection.

External links