Untangle. Rings and Lines

"Untangle. Rings and Lines" is an exciting puzzle game.
Move the rings to make threads not crossed.
These objects can not be overlapped.
Some rings are fixed - they can not be moved.
Discs can be moved only in their orbits.
Unravel a ball of threads!
Solve with minimum number of moves.
"Solution" button is available without restriction for all tasks.
"Untangle Rings and Lines" is a classic puzzle game which will help you to enjoy time.
All the tasks are divided into 5 groups according to the number of nodes (6-7, 8-9, 10-14, 15-19, 20-30).
There are 5 categories of complexity in each group.
Each category has 400 levels.
There are total (5x5x400) = 10000 tasks.