The 2-engine Cordership is a diagonal c/12spaceship that was discovered by Aidan F. Pierce on December 31, 2017. It is the Cordership that uses the fewest number of known possible switch engines, as well as the smallest Cordership in terms of population.
Synthesis
Dave Greene found a 13-glider synthesis of the 2-engine Cordership on the day of its discovery, which AbhpzTa improved to 9 gliders.