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29P9 image
Pattern type Oscillator
Oscillator type Billiard table
Number of cells 29
Bounding box 10×10
Period 9
Mod 9
Heat 3.3
Volatility 0.27
Strict volatility 0.27
Discovered by Dean Hickerson
Year of discovery 1997

29P9 is an unnamed period 9 billiard table oscillator discovered by Dean Hickerson in April 1997. In terms of its 29 cells, it is the smallest known period 9 oscillator.[1]


Martin Grant found a 59-glider synthesis of 29P9 on August 6, 2016.[2]


  1. "Class 2 Objects Catalog". Retrieved on April 3, 2009.
  2. Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums

External links

  • 29P9.1 at Heinrich Koenig's Game of Life Object Catalogs