In the standard form of this puzzle, a grid is provided with one or more numbers in some cells. To solve it, shade some empty cells in an orthogonally connected group so that among the 8 cells orthogonally or diagonally adjacent to each numbered cell, the connected group(s) of shaded cells have the size(s) of the number(s) in that cells. (Like paint by numbers except the clues apply to these 8-cell rings instead of rows and columns.)
Puzzles
MIT Mystery Hunt 2012 Blackout
MIT Mystery Hunt 2013 Portals
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