1. The ideal answer I am looking for is if it's possible to turn each layer only once clockwise at a time, and that the opposite layer can not be turned immediately after.
We are looking for an alg to describe U' in terms of U, D, R, L, F, B, i.e., clockwise quarter turns without repetition and...
Someone recently posed a question to me: can you solve a 3x3x3 without turning one of the faces? To respond to this, I first tried to figure out how to perform an R' without turning the R face at all. After coming up with a 50 move intuitive solution, I ran a program on an Amazon server...