Linesweeper

Linesweeper is a logic puzzle. Draw a loop in the grid where, for some cells, the number of adjacent cells with line elements is given.

Rules: A single closed line is to be drawn in the grid, which does not pass through any cell more than once but does not necessarily pass through all cells.
The individual sections of the line run horizontally or vertically between the centres of orthogonally adjacent cells.
The line never passes through a cell containing a number. A number in a cell indicates how many of the eight neighbouring cells the line passes through.