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Here's a nurikabe for you. Let's see who can solve it first.

Nurikabe Puzzle

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    $\begingroup$ It would help if you can give some description on what nurikabe is, or at least a link to a description. This way the puzzle will be more self-contained. $\endgroup$ – justhalf Jan 24 '17 at 15:30
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This appears to be a valid solution. (I did about 3/4 of it by proving that cells had to be of one sort or another, and the rest by educated guesswork and backtracking.)

enter image description here

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    $\begingroup$ Are you an AI or something? :) +1 $\endgroup$ – Techidiot Jan 24 '17 at 15:49
  • $\begingroup$ This is what I got also from certain deduction =). The key one was that the square at row 3 col 2 cannot be black, as it will cause the blacks at row 1 col 2 to be isolated. From there it's quite a breeze as it can only be connected to the 16. $\endgroup$ – justhalf Jan 24 '17 at 16:09
  • $\begingroup$ That was one of the bits I deduced rigorously. The right-hand side was trickier, or at least looked sufficiently trickier that it seemed like it would be quicker to try to construct a solution. $\endgroup$ – Gareth McCaughan Jan 24 '17 at 16:13
  • $\begingroup$ You got the answer. Kudos! $\endgroup$ – Topple Jan 24 '17 at 23:58

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