its there any simpler solution?
Ok..I accepted the challenge..   
If I understand correctly..movement should look like:
(player click on sprite..and sprite move to "empty space")
I spent almost 15 events for movement...(yes...I know it can be simpler   )
I hope to complete the entire mini-game(sort the frames from 0-14) in less than 30 events...
But ...
at this moment I'm obviously too stupid to solve the problem   
my best result..after a half  hour of trying!!!   
so..when I manage to confirm that the game works properly...I will upload capx...