https://forums.unrealengine.com/core/image/gif;base64
Ok so I went for something simpler, only on the X or Y and I succeeded thanks to this blueprint: simpler bp posted by anonymous | blueprintUE | PasteBin For Unreal Engine
If i dont break, It’s not going one at a time and if i dont use the last sphere it goes 2 by 2 and (if i dont use the last sphere and i break it stop after 2 or 3 tiles) XD so for me its only work with this bp.
This bp work for X or Y or X,Y diagonal, but i’m not sure how to make it work for my basic idea 
