#217 - Nurikabe (Yajisan-Kazusan)

    I first saw this idea in this puzzle by Jamie Hargrove. Here's my take on it!

     Shade some cells so that all shaded cells form one orthogonally connected area. Every orthogonally connected area of unshaded cells contains exactly one clue, the value of which represents the size of the area. Shaded clues are meaningless. No 2x2 region may be entirely shaded.

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