How do i make sure i click the top-most sprite

Hello,

Im trying to make a jigsaw puzzle game.

My problem, when 2 pieces are overlapping i want to click only the piece on top.

I dont get what's happening, if you take a look at the capx.

I setup the events so only the top piece should be clicked, but sometimes it just selects the middle one, sometimes the bottom one.

Please try a few clicks for yourself, just keep overlapping the pieces and try to find the logic behind it :)

I'm clearly doing something wrong, but i need some help finding what

dl.dropbox.com/u/62893304/clickandpick.capx

really blue/green/red should all be the same object (piece) and then you can do

+on left button clicked on piece

+pick top instance

but if you do need them to be different objects you can put them all in a family and do the same.

Thanks alot keepee,

That worked :)

dl.dropbox.com/u/62893304/clickandpicksolution.capx