I previously showed my Linked Cube set, but then I made only versions with one linked chains.
Those who bought an extended version of Linked cube or Joint cube will be able to make this puzzle.
This is a very unusual find - Bi-Linked Cube !!!
the principle is the same - the linked chains cannot be broken. but in this cube there are two such linked chains!
Because of this, each rotation of the face requires special additional steps. my opinion is very difficult to solve !!!