Rubik's family cubes of all sizes Rubik's family cubes of all sizes The original Rubik's cube was a mechanical 3×3×3 cube puzzle invented in 1974 by the Hungarian sculptor and professor of architecture Ernő Rubik. Extensions of the Rubik's cube have been around for a long time and come in both hardware and software forms. The major extension have been the availability of cubes of larger size and the availability of the more complex cubes with marked centres. The properties of Rubik’s family cubes of any size together with some special attention to software cubes is the main focus of this article. Many properties are mathematical
Word Sum Puzzle alphabet: A, a = 1 B, b = 2 C, c = 3 D, d = 4 Z, z = 26 A curved part of a path: _ _ (7) _ _ _ _ (25) The first line of the puzzle presents a clue; in this puzzle, "A curved part of a path" is the puzzle’s clue. The other lines of the puzzle are its hints. This puzzle has two hints: FIRST HINT _ _ (7) This hint indicates that the first two letters of the answer make a sum of 7. Hence, the first two letters can be: A