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Nth Seen + Tapa (1144)
Instruction:
Shade some empty cells; cells with numbers cannot be shaded. All shaded cells connect along edges to create a single connected region. (It is permissible for the region to touch itself at a corner, but touching at a corner does not connect the region.) No 2×2 group of cells can be entirely shaded.
Numbers in a cell indicate the lengths of contiguous shaded cell groups along the "ring" of 8 cells touching that cell (fewer for cells along the outside edge). If there is more than one number in a cell, then there must be at least one white (unshaded) cell between the shaded cell groups. The numbers are given in no particular order. As a special case, if the number given in a cell is a zero (0), it means that none of the cells around that cell can be shaded.
For each row and column, consider its cells to be divided into segments by whether the cells are shaded; that is, a segment is an uninterrupted group of touching cells that are either all shaded or all unshaded, and every cell in that row or column is part of exactly one segment. (For example, a row that only has shaded cells has exactly one segment, equal to the length of the row.) A group of gray squares given outside the grid indicates that at least one segment of that size can be found along the corresponding row or column. A number given with the segment indicates the order in which that segment appears in that direction along that row or column (for example, a 3 means that the specified segment is the 3rd segment). It is possible for other segments of the same length as the clued segment to appear without being clued.