Cm space group PyXtal outputs
A portion of our 2nd iteration of the tree search approach is playing around with new structure generation methods. It's still very early but I wanted to share my new favorite space group.
Fe16Co8Si4 (requested SG: F-43m #216, calculated SG: Cm #8, optimized: 358 steps, cell relaxed (isotropic))
Supercell 3x3x3 of Fe4Co2Si (Space group: P1, 108 symmetry operations)