Remove the 4 red rings!
Once you have figured out how this Pastime Puzzle works, you may discover the repetitive character of this puzzle design. But don't forget to pass some time to figure it out completely! Only then you will be able to put it back to start for the next victim. If you don't figure it out before solving the puzzle, you may not get it back to starting position! And wouldn't that be a waste of your passed time?