Logic Masters Deutschland e.V.

Rules:

Each cell is either shaded or unshaded.

A shaded cell contains a number equal to the amount of surrounding shaded cells (not counting itself). Shaded cells that share an edge cannot contain the same number. All shaded cells form one contiguous area.

An unshaded cell does not contain a number.

Adjacent values on a green line differ by 5 or more, and values on a purple line comprise a set of consecutive, non-repeating numbers (in any order). Unshaded cells are considered to have a value of 0 for the purposes of these lines.

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