Addictive and in my opinion not too difficult

I do not know the previous versions and I have finally decided the same 3D version to buy - and that was a good thing. Many write here, that it was too difficult, I do not agree. Even if one is not so good in spatial thinking, it can be recognized quickly how to approach the puzzle so that it quickly dissolves. So it makes I find really fun and you always want to keep playing.

Especially the simpler version with three stones is to create good, although the specified cosmos recommended age should raise to 12 years earlier - the younger despair fast times and the genius in spatial thinking are hard to beat - these are the weaknesses of the game.

Otherwise: One understands the rules immediately, the quality of the modules is very good and it is also pedagogically well. Disadvantages are the large box and the price - really quite expensive. So overall a very good acquisition and definitely recommend it (even if you do not know the previous versions).