Star, F2L and S2L

The Megaminx is a dodecahedron with 12 faces. Speed solvers build a 'star' (five edges around the first face), insert its five corners, then build the second layer of F2L-like pairs and the 'S2L' block by block up to the last face. The last layer uses CFOP-like steps: EO, CO (OLL), then EP and CP (PLL), in two to four looks.

Notation: the faces are U, F, R, L, BR and BL on the top half and D, B, DR, DL, DBR and DBL below; a letter turns its face a fifth of a turn clockwise, R2 two of those, R2' the same back. y turns the whole puzzle about U.