The device consists of a wooden shaft, rope, two marbles and a ring.(Cropped image from clip).
The task for the player is to put the ring from the blue ball to the red ball, but keep the structure of the device (do not break the ring, do not cut the rope, do not break the ball and do not break the wood shaft) .
A Japanese man who has spent 10 years still cannot solve this puzzle.
Everyone gave up. People have asked a university professor about Physics in the hope that this person will help them give solutions to this difficult puzzle. But the professor must also "give up". Even, people even gave the device to a chimp by assuming that simple thinking of animals could help. But the result is also zero.
This is really a super-difficult puzzle because the baby's ring is too small to slip through the ball and even the wooden frame using only strength. The rope is too short to cross the wooden frame.
The baby's ring is too small to fall through the ball and the wooden frame.
The rope is not long enough to cross the wooden frame.
The only way to solve the puzzle is to skillfully adjust the rope so that the ring can be left on the other side. Speaking is simple but how to do it. See the answer below for answers.