Solve: My father and I have about 5 hours needed to get the Puzle apart. The solution value is not readily apparent and there are many blind alleys and paths.
Assembling: Here the Schwierikeitsgrad still rising at times. I found that you would assemble more often ends up in an attempt to dead ends and the starting position for assembling is very hard to find. I can not put together until now. Cool extra - There is an alternative way of assembling.
Conclusion: Very difficult to get apart. Even harder to assemble again. For me personally it has completely fulfilled the expectations and it certainly has a long thing of the puzzle (the intention in my opinion - which brings a already a 2min Puzzle). Another advantage is that it looks very good and is well made.