Fill

Simple to grasp yet challenging to excel in, Fill unblocked presents an ideal mental workout. Your goal: encase each square on the grid with a single line, ensuring not to cross the same spot twice! Hone your cognitive skills with this connect-the-blocks-style puzzle game designed to engage your brain with every move. You can navigate between blocks with the help of the mouse. Remember that you can only pass through a block once. If you pass a block more than once, play that section from the beginning again.