Here is the trick to this puzzle. You start off by moving a frog forward,
say the left frog----- Now you leap a frog over him from the right. Since you are trying to progress your frogs over to the opposite side, it is a natural tendency to move the original frog that you had moved forward, one more space forward. This is incorrect. You must keep the frogs properly spaced out.----- Label the frogs form left to right A,B,C,D,E, and F. The green frog farthest to the left is frog A, and the brown frog farthest to the right is F. Then----- click on the frogs in the following order:
C,D,E,C,B,A,D,E,F,C,B,A,E,F,A.