Block on griddle

Block on griddle (or singular flip flop) is a period-2 oscillator that was discovered by Robert Wainwright in July 1972.[1]

Block on griddle
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Pattern type Oscillator
Family Griddle
Number of cells 15
Bounding box 6×7
Frequency class 30.0
Period 2
Mod 1
Heat 6
Volatility 0.33
Strict volatility 0.33
Rotor type Flutter
Discovered by Robert Wainwright
Year of discovery 1972

Commonness

Block on griddle is about the thirty-sixth most common naturally-occurring oscillator in Achim Flammenkamp's census, being slightly less common than the cis-beacon down on long hook, approximately as common as the boat on spark coil, and more common than fore and back and 21P2.[2]

Synthesis

In October 2014, Ivan Fomichev found a 6-glider synthesis for this pattern based on a soup from Adam P. Goucher's apgsearch script.[3] A 5-glider synthesis was found in July 2020.[4]

gollark: And I have made the axiom of choice.
gollark: I mean, they have, but by us for convenience.
gollark: Perhaps they would have done this if they had ever entered operation. However, as of now they are merely inert hexahedra contained at GTech™ Hyperbolic Site-6906.
gollark: Those were, as I said, neutralized on arrival. We were able to prove that *those* were the empty set, so they obviously can't do anything.
gollark: All "higher arithmetic levels" are also controlled by infinitely recursive GTech™ metaprogrammable bees.

See also

References
  1. Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  2. Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
  3. "Soup search results". Retrieved on November 9, 2014.
  4. Ian07 (July 18, 2020). Re: Randomly enumerating glider syntheses (discussion thread) at the ConwayLife.com forums
  • 15P2.28 at Heinrich Koenig's Game of Life Object Catalogs
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