Solving a Megaminx can look intimidating with its 12 faces and 50 moving pieces, but here is the "cheat": Most of the puzzle is solved using basic 3x3 logic, with only the very last layer requiring a few specific new movements. Phase 1: The "3x3" Foundation
Hold the puzzle so the unsolved corner is in the bottom-right. Do the moves until that corner is gray-side up. Do not rotate the whole puzzle to reach the next corner; only rotate the top layer to bring the next messy corner into that same bottom-right spot. Pro Tips for Beginners
Just like a 3x3, insert the white corners and their corresponding side edges. You can use the standard (R U R' U') "sexy move" to slot these in.
