Slitherlink

A logic puzzle where one creates a line that touches each polygon on exactly as many sides as the included number states. No grid point may be passed twice. Ultimate goal being to create a end-to-end connected loop that. There's no real hard set right solution to any puzzle as the shape of the end product does not matter for actually solving the puzzle. Any unbroken loop of any shape that fulfils the requirements is a winning loop. However, the grid design may enforce certain final shapes.