The great on-off (or pincers) is a period 2 oscillator. It has the same rotor as the beacon and resembles two touching loops.
The great-on-off is the ninth most common naturally-occurring oscillator in Achim Flammenkamp's census, being less common than the quadpole but more common than the figure eight.
- ↑ "Pincers". The Life Lexicon. Stephen Silver. Retrieved on May 1, 2009.
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- 18P2.475 at Heinrich Koenig's Game of Life Object Catalogs