Birthday puffer

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Birthday puffer
x = 50, y = 68, rule = B3/S23 39b2ob2o$43bo$37b3o3bo$37b2ob2o$38b4o7$42b3o$36bo2b3o2bo$35bo8bo2b2o$ 35bo5bobo5bo$35b2ob2o2b2ob2o2bo$36bo7bobob2o$45bo25$b3o$b2o3bo$5b2o$2o 3bo$9b3o$8bo2b2o$8bo2b2o$9b2o12bo$21b2obo$21bo4bo$22bo3b2o$24b4o3$25bo $24bobo$25bo5$22bobo$22bo2bo$22bo2bo$25bo$24b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 2 GPS 12 HEIGHT 480 TRACK 1/12 1/12 ]]
Pattern type Puffer
Number of cells 97
Direction Diagonal
Period 2304
Speed c/12
Discovered by Adam P. Goucher
Year of discovery 2016

The birthday puffer is a naturally-occuring infinite growth pattern that is a combination of two glider-producing switch engines. It was found by Adam P. Goucher using his own apgsearch script.[1][2] Its name comes from the fact that it was found on Adam's birthday.[3]


  1. Adam P. Goucher (2016-04-28). "Haul". Catagolue. Retrieved on 2016-10-19.
  2. dani (April 28, 2016). Re: Soup search results (discussion thread) at the forums
  3. Alexey Nigin (August 10, 2016). Re: Help with names (discussion thread) at the forums

External links