Difficult Spatial Test

Wow, this is probably one of the most difficult and time consuming puzzles we have published here on this website. I mean, maybe not even so difficult as simply pretty time consuming. This one really requires a lot of focus because you just need to maintain your concentration to successfully fold the whole object into its pre-designed shape. This is definitely a great training of your visualization skills and while you might be having a hard time to cope with this puzzle, I’m sure that there’s a lot of experienced folks out there that have already been playing with similar tasks for years. For it should be fairly easy. I’d like to also point out that if it takes you longer of you simply cannot focus enough to get it done, it doesn’t mean you’re stupid), you just need to maybe train more or it’s simply not interested enough for you to put more energy into it. SO here is the question: If we try to maintain more-less the same abount of shapes and sizes like the first half of the cubes was built – how many pieces do we need to finish the other half?

A) Less than 100

B) More than 800

C) More than 3000

D) More than 10,000