Rubik's 3x3 Cube The world's most famous puzzle is the still the best selling puzzle of all time. Billions of combinations, only one solution. The Rubik's Cube continues to challenge young and old alike. While it has 43 quintillion possible moves, it can be solved in incredibly few moves. The unique turning action and simple colour concept make the Cube the world's #1 puzzle. Not suitable for children under three years old due to small parts, keep out of their reach.