Cuphook

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Cuphook
4b2o3b$2obobo3b$2obo5b$3bo5b$3bo2bo2b$4b2obob$7bob$7b2o! #C [[ THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 2 GPS 2 ]]
Pattern type Oscillator
Oscillator type Muttering moat
Number of cells 18
Bounding box 9×8
Period 3
Mod 3
Heat 2
Volatility 0.14
Strict volatility 0.14
Rotor type Cuphook
Discovered by Rich Schroeppel
Year of discovery 1970

Cuphook is a period 3 oscillator that was found by Rich Schroeppel in October 1970.[1] It is one of only three essentially different period 3 oscillators with only three cells in the rotor. The others are 1-2-3 and stillater.

References

  1. Robert Wainwright (March 1971). "Lifeline Volume 1".

External links

  • 18P3.21 at Heinrich Koenig's Game of Life Object Catalogs