Brainstring "R"

Brainstring R
No strings attached
The popular Brainstring has been turned inside out! Brainstring ‘R’ is just as knotty as the original, but features a movable ball with a 360° spin that will have you on the ropes.
twist, turn, stretch and slide the puzzle in all directions to unravel the tightly wound knot. once the strings are completely separated, the puzzle is solved – no strings attached.
IQ Focus
Logic, Strategy, Focus
How to play
Align the tracks and twist the two halves in opposite directions.
Every spin will either tangle or untangle the strings inside.
Solve by untangling the knot so that none of the strings touch.