next to the "king" (i think), those two puzzles with the colored balls.
i've completed the bottom one, but the top puzzle is just damn impossible. i've been at it for ages but i can't find a way to get the green balls to the right place. any suggestions?!
first of all you need to move all the yellow balls almost to the bottom and then move em after grey, try different situations and dont hurry, try moving ball by ball, not all the way you can and you'll see every possibility.