Odd keys is a period 3 oscillator found by Dean Hickerson in August 1989. It can be extended horizontally as in 92P33.1.
In January 2000 Mark Niemiec found a 21-glider synthesis of this oscillator. On August 25th 2016, Goldtiger997 found a 10 glider synthesis of odd keys, which was later reduced to 9 gliders by Dave Greene.
- ↑ Jason Summers' jslife pattern collection.
- ↑ Goldtiger997 (August 26, 2016). "Re: Soup search results". Retrieved on August 12, 2017.