The Rubik's Cube that we usually play the most is 3x3x3, which is the most basic regular hexahedron with six colors 12 sides.
This paper will explain the concepts of surface, layer, corner block, edge block, center block, surface position, position and homing in detail, so as to facilitate players to get started quickly.
Adding' next to the letter means rotating 90 degrees counterclockwise, and vice versa. The standard is determined by the surface marked by letters. So how to take and put the Rubik's cube is also very important.