Block Path Mania

Block Path Mania is one of many topology puzzle game.
To solve the puzzle draw a path to fill out entire board.
You are given the starting square-Blue must draw a continuous loop that covers the whole grid. Red squares are obstacles. You should first identify which square must be last. From there, it’s a lot easier.
To solve the puzzle draw a path to fill out entire board. Don't be fooled by the simplicity, it's not as easy as it looks. Give it a try!