Why the layer-by-layer method is the easiest way to start
Speed-focused solvers often use methods like CFOP, which use fewer overall moves but require memorizing far more algorithms. For a beginner, locking down one layer at a time without disturbing what is already solved is much easier to understand, and lets you learn a small number of algorithms gradually.
Why the centers never need "solving"
On a 3x3 cube, the six center pieces stay in the same position relative to each other no matter how you turn it β they only spin in place and never swap positions. That is why the whole method is built around using center colors as a fixed reference for placing edges and corners, rather than worrying about the centers themselves.
Frequently Asked Questions
Do I need to memorize a huge number of algorithms to solve a cube?
Not at the beginner level β you really only need a handful of core algorithms, mostly concentrated in the last three steps. The earlier steps rely mostly on observation and practice, unlike the large algorithm sets speed-cubers memorize.
Is every scrambled cube actually solvable?
Yes, as long as it was scrambled through normal turning (and not taken apart and reassembled incorrectly) β there is always a solution. If you follow the standard steps and still cannot finish, it is worth checking for a mistaken move along the way, or whether the cube itself was ever taken apart.