New 2c/4 and Diagonal c/4 Spaceships

2c/4 spaceships In the past few months, Harmut Holzwart has found a number of new 2c/4 and diagonal c/4 spaceships.
c/4 diag. spaceships

(Disclaimer— I have no association with anyone or any organization, and speak only for myself. Links and quotes are provided for information only.)