how to solve that circle puzzles
Turn all the lights on. Clicking a piece inverts the state of the light clicked on and the two adjacent ones. I recommend learning different patterns to solve it. For example, if there are two lights on side by side, click the two buttons that are two spaces away from the lights. If all lights are off, click all lights once. There are many patterns you can learn, but until you get good, it's probably easiest to try to turn off as many lights as you can as fast as you can. If you get to one light, click an adjacent light so that there are now two adjacent lights on, then use the two adjacent on lights solution. If you end up with all lights off, use the all lights off solution. Good luck!