magic cube

Short definition from Wiktionary

Noun

1. 1
   By analogy with magic square, an n-by-n-by-n arrangement of n³ numbers such that the numbers in each row, in all columns (horizontal and vertical) and in all main diagonals (of which there are 6*n+4) each have the same sum.
2. 2
   A Rubik's cube.

Proper noun

1. 1
   Rubik's Cube