Minesweeper Loop

Author: Andrey Bogdanov

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Draw a single continuous loop in the grid using horizontal and vertical line segments. It should not cross or overlap itself. Numbers in the grid show how many of eight neighboring cells are visited by the loop. The loop can't go through a cell with digits.

Example puzzle

Grid control: Click the mouse button at the selected cell to change the filling of the cell. More details about grid control are at the help page.