I also own this puzzle; though mine is a little different to the one shown here, mine has a yellow and orange equator.
Here's what I know about it:
Invented in 2011 by Bulgarian Engineer Petyo Petkov
It's Bulgarian name is "Българско Буренце"
I made a demonstration video
of the puzzle for those interested.
Website | YouTube Channel |
Tony Fisher wrote:
Please can you reduce the size of your photos when posting. To see the whole of this thread I have to walk into the next room.