Hungarian Rings or Devil's Circle is a sliding puzzle consisting of two interwoven rings, which has several color labeled that you cannot take out. Challenge: The challenge is to set the balls so that the corresponding colors are next to each other. There are some variations where more than two circles are used or the two circles are not place or the balls are marked by numbers not by colors. Hungarian Rings Solution Every state is considered to be a valid solution where the four colors are coherent. In my case I have 10 balls of red, 10 black, 9 blue, and 9 yellow. Different models can have different colors but the solution here presented is with four colors. Ok, So my rings state is like this in below picture. Jumbled Rings First of all solve intuitively, one set of colors which have 10 balls(black) on the right. Then solve the next set of colors having 10 balls (red) on the left. When this is done, try arranging the inner colors the y...