Another great puzzle by Oskar van Deventer. The H H puzzle is made out of two pieces shaped like the letter H. The goal of the H H puzzle is to take apart the two pieces that move in a very tricky way, which makes it difficult to discover the system of how they will come apart. This metal puzzle will challenge the most brilliant minds! The puzzle was d esigned by the famous artist Oskar van Deventer. The beautiful aesthetics of the H H sculpture shape and the complexity of the puzzle make it one of the favorite puzzles among all the Hanayama metal puzzles.