Z Cast Hanayama Puzzle Keyhole puzzler

Hanayama Cast Keyhole is another in a series of luxury metal puzzles from the Belgian manufacturer. The challenge is to separate the different parts of the maze from each other. The two parts of the puzzle have different protrusions on their otherwise smooth surface. To separate them, they need to be carefully rotated. However, you need to think through each movement well, because if you rush, you can easily reach a dead end.