### Nurikabe Loop by Serkan Yürekli

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Theme: The Magic of 23

Author/Opus: This is the 31st puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: In this variation of Nurikabe, the no 2×2 ocean rule is removed and instead all ocean cells must belong to a single closed loop.

Specifically: Divide the grid into regions called “islands”, each containing exactly one of the given numbers and with the same area as that number. Islands can only touch diagonally. A single closed loop (without intersection or crossings) must be drawn in all remaining cells.

Answer String: Enter the length in cells of the horizontal loop segments from left to right in the marked rows, starting at the top. If the loop only has vertical segments in the marked row, enter 0. Separate each row’s entry with a comma. This example has the key “12,3”.

Time Standards (highlight to view): Grandmaster = 4:45, Master = 6:30, Expert = 13:00

Note: Follow this link for classic Nurikabe puzzles on this website and this link for other variations on Nurikabe puzzles. If you are new to this puzzle type, here are our easiest Nurikabe puzzles to get started on.

• Nikolai says:

Great puzzle, thanks!
Gur fgrc va gur zvqqyr bs gur fbyir, jvgu gur gjragl-guerr ernpuvat nyy gur jnl gb gur hccre-evtug, was awesome. Even more so because it is a very natural idea and I haven’t seen it in other Nurikabe Loops 🙂

• Aaron Chan says:

This one was quite difficult, and 23 is definitely magic.

• chaotic_iak says:

09:12. Impressive puzzle, with the 23 driving the second half of the puzzle. Magnificent construction.

• hagriddler says:

Wowzer ! I started to describe what I like about this puzzle, but it turned out to be too much to mention !

Gur pbzzhavpngvba orgjrra gur bar naq gjb va gur hccre evtug,
gur fdhner sbhe, ubj gur frira sbepr n ybg va gur hccre naq ybjre yrsg,
gur avargrra naq gjragl guerr naq svanyyl gur rvtug.

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