For more than two thirds of area players will only clayey gray-black-blue, exclusively in broad daylight (in the popular puzzle months of winter rather a rarity) can be distinguished in shades! The original puzzle is much darker than the manufacturers figure suggests, and artificial lighting distorts the colors and reflects unfortunately enormous. Even with optimal lighting conditions the search ends in stumpfsinnigem trial and error, which "ears" must in which recess. That's far, far away from the desired relaxation and Kurzweil.
Since the normal everyday annoyances already sufficiently keeps ready and it's not a double game must be purchased, we started the first time a puzzle in this early stage (see little picture where even the dark madness of the remaining stones can be seen in the boxes). Maybe, just maybe, I reach again on a similar topic by Sarel Theron, of which I have already sounded lighter designs.
This puzzle is for normal claim or for children "unpuzzleble" and otherwise probably more suited for masochists or Stoics; o).
Noteworthy: By chance I found the landlord of this platform an apparently recent edition (2013) of the same subject from Schmidt games (No. 58191, also 1,000 parts and same size.) - Possibly (it would certainly be desirable) the subject has been touched up by lightening.