Slitherlink is a logic puzzle played on a rectangular grid of dots in which some of the squares formed have numbers in them. The objective is to connect horizontally and vertically adjacent dots so that the lines form a single loop with no loose ends. In addition, the number inside a square represents how many of its four sides are segments in the loop. For example a "2" will have "2" lines surrounding it and "3" will be surrounded by "3" lines. Conversely "0" will have no lines looping it.
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