1, the middle four are on a line, and there are no rules on both sides.
2. Two, three and wrong one are closely connected, and Trinity and one are randomly connected.
3. The pairwise connection is wrong.
4. Three rows are aligned.
5. No more than four lines per line.
A three-dimensional figure surrounded by six identical squares is called a cube. A straight parallelepiped with square sides and bottom is called a cube, that is, a hexahedron with equal sides, also known as a cube and a regular hexahedron. Cubes are special cuboids. Dynamic definition of cube: a three-dimensional figure obtained by translating the side length of a square in the direction perpendicular to the plane of the square.
Reference Rubik's Cube _ Baidu Encyclopedia