This interesting puzzle is really difficult to solve, but definitely not impossible. It contains up to 10 colours, making it one of the most colourful puzzles ever. The puzzle is suitable for children from the age of 7, when they start to develop spatial thinking, logic and strategy. The principle of the puzzle lies in the re-arranging of its surfaces by rotation in any direction. After randomising, the goal is to twist the puzzle back into its original shape, including all 28 identical coloured walls.