Smart Ring : Path Finder

Blue Ring has its own intelligence.
It wants to reach the Pink Ring's position from the shortest path but it is not smart enough to know that it also has to collect all bright objects in playground before reaching the Pink Ring's position.
You can not control the Blue Ring but you can direct him.
To achieve this , you have to drop obstacles ( some piece of rock ) correctly .
You should do so in such a way which should ensure Blue Ring to gather all bright objects on its way while trying to avoid from these placed obstacles in playground.
Dropping the obstacles in right place is the key point for victory.
There is not only one correct solution . It's up to you.
But do not forget ! You have limited obstacle resources  .

How to play : 
!! To drop multiple obstacles just drag your finger on screen .
!! To drop one obstacle at single time just tap once .
!! Be sure you leave enough space between the placed obstacles.If blue smart ring can not find any possible way to pass through between the obstacles this means it can not reach the pink ring's position .In such a case it will warn you.