Birthday puffer

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Birthday puffer
Birthday puffer image
Pattern type Puffer
Direction Diagonal
Period 2304
Speed c/12
Number of cells Unknown
Bounding box Unknown
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]


  1. Adam P. Goucher (2016-04-28). "Haul". Catagolue. Retrieved on 2016-10-19.

External links