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Tapa (Transparent) (923)
Instruction:
Shade some cells (unlike regular Tapa, cells with numbers can 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 among the 3×3 group of the cell itself and 8 cells touching that cell (fewer for cells along the outside edge). If there is more than one number in a cell, then the shaded cell groups must be separated (cannot touch along a cell edge). 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 in that 3×3 group can be shaded.