The JUHA series was developed in the 1990s by designer Juha Levonen. All puzzles in the series are very difficult. In order to solve the puzzle, some rotation and sliding of the pieces is required, which is unusual in assembly puzzles and makes the solution quite a bit more difficult. Five different pieces form a cube that is 4 units by 4 units by 4 units.
Designed by Juha Levonen and made in Samena wood by Philos. Philos is a German puzzle manufacturer that started in 1996 as a manufacturer and distributor of toys. They make a wide variety of wooden puzzles, as well as some less common strategy games, playing cards, and dice.