Retroinverted disicositetrachoron

The retroinverted disicositetrachoron, or ridi, is a nonconvex uniform polychoron that consists of 24 truncated cubes and 24 small cubicuboctahedra. Four truncated cubes and four small cubicuboctahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the small prismatotetracontoctachoron.